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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Đăng nhập</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Trang dành cho người dùng chưa đăng nhập <a href="/wiki/Tr%E1%BB%A3_gi%C3%BAp:Gi%E1%BB%9Bi_thi%E1%BB%87u" aria-label="Tìm hiểu thêm về sửa đổi"><span>tìm hiểu thêm</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%C4%90%E1%BA%B7c_bi%E1%BB%87t:%C4%90%C3%B3ng_g%C3%B3p_c%E1%BB%A7a_t%C3%B4i" title="Danh sách các sửa đổi được thực hiện qua địa chỉ IP này [y]" accesskey="y"><span>Đóng góp</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%C4%90%E1%BA%B7c_bi%E1%BB%87t:Th%E1%BA%A3o_lu%E1%BA%ADn_t%C3%B4i" title="Thảo luận với địa chỉ IP này [n]" accesskey="n"><span>Tin nhắn</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Trang Web"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Nội dung" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Nội dung</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">chuyển sang thanh bên</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">ẩn</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Đầu</div> </a> </li> <li id="toc-Tiếng_Việt" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tiếng_Việt"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span><span>Tiếng Việt</span></span> </div> </a> <button aria-controls="toc-Tiếng_Việt-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Hiện/ẩn mục <span>Tiếng Việt</span></span> </button> <ul id="toc-Tiếng_Việt-sublist" class="vector-toc-list"> <li id="toc-Từ_viết_tắt" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Từ_viết_tắt"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Từ viết tắt</span> </div> </a> <ul id="toc-Từ_viết_tắt-sublist" class="vector-toc-list"> <li id="toc-Dịch" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Dịch"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1.1</span> <span>Dịch</span> </div> </a> <ul id="toc-Dịch-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Tham_khảo" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Tham_khảo"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Tham khảo</span> </div> </a> <ul id="toc-Tham_khảo-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Nội dung" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Đóng mở mục lục" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Đóng mở mục lục</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">N</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Xem bài viết trong ngôn ngữ khác. Bài có sẵn trong 50 ngôn ngữ" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-50" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">50 ngôn ngữ (định nghĩa)</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wiktionary.org/wiki/N" title="N – Tiếng Afrikaans" lang="af" hreflang="af" data-title="N" data-language-autonym="Afrikaans" data-language-local-name="Tiếng Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wiktionary.org/wiki/N" title="N – Tiếng Asturias" lang="ast" hreflang="ast" data-title="N" data-language-autonym="Asturianu" data-language-local-name="Tiếng Asturias" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wiktionary.org/wiki/N" title="N – Tiếng Bangla" lang="bn" hreflang="bn" data-title="N" data-language-autonym="বাংলা" data-language-local-name="Tiếng Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wiktionary.org/wiki/N" title="N – Tiếng Breton" lang="br" hreflang="br" data-title="N" data-language-autonym="Brezhoneg" data-language-local-name="Tiếng Breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wiktionary.org/wiki/N" title="N – Tiếng Catalan" lang="ca" hreflang="ca" data-title="N" data-language-autonym="Català" data-language-local-name="Tiếng Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wiktionary.org/wiki/N" title="N – Tiếng Séc" lang="cs" hreflang="cs" data-title="N" data-language-autonym="Čeština" data-language-local-name="Tiếng Séc" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wiktionary.org/wiki/N" title="N – Tiếng Đan Mạch" lang="da" hreflang="da" data-title="N" data-language-autonym="Dansk" data-language-local-name="Tiếng Đan Mạch" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wiktionary.org/wiki/N" title="N – Tiếng Đức" lang="de" hreflang="de" data-title="N" data-language-autonym="Deutsch" data-language-local-name="Tiếng Đức" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wiktionary.org/wiki/N" title="N – Zazaki" lang="diq" hreflang="diq" data-title="N" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wiktionary.org/wiki/N" title="N – Tiếng Hy Lạp" lang="el" hreflang="el" data-title="N" data-language-autonym="Ελληνικά" data-language-local-name="Tiếng Hy Lạp" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wiktionary.org/wiki/N" title="N – Tiếng Anh" lang="en" hreflang="en" data-title="N" data-language-autonym="English" data-language-local-name="Tiếng Anh" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wiktionary.org/wiki/N" title="N – Tiếng Quốc Tế Ngữ" lang="eo" hreflang="eo" data-title="N" data-language-autonym="Esperanto" data-language-local-name="Tiếng Quốc Tế Ngữ" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wiktionary.org/wiki/N" title="N – Tiếng Tây Ban Nha" lang="es" hreflang="es" data-title="N" data-language-autonym="Español" data-language-local-name="Tiếng Tây Ban Nha" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wiktionary.org/wiki/N" title="N – Tiếng Estonia" lang="et" hreflang="et" data-title="N" data-language-autonym="Eesti" data-language-local-name="Tiếng Estonia" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wiktionary.org/wiki/N" title="N – Tiếng Ba Tư" lang="fa" hreflang="fa" data-title="N" data-language-autonym="فارسی" data-language-local-name="Tiếng Ba Tư" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wiktionary.org/wiki/N" title="N – Tiếng Phần Lan" lang="fi" hreflang="fi" data-title="N" data-language-autonym="Suomi" data-language-local-name="Tiếng Phần Lan" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wiktionary.org/wiki/N" title="N – Tiếng Pháp" lang="fr" hreflang="fr" data-title="N" data-language-autonym="Français" data-language-local-name="Tiếng Pháp" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wiktionary.org/wiki/N" title="N – Tiếng Galician" lang="gl" hreflang="gl" data-title="N" data-language-autonym="Galego" data-language-local-name="Tiếng Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wiktionary.org/wiki/N" title="N – Tiếng Guarani" lang="gn" hreflang="gn" data-title="N" data-language-autonym="Avañe'ẽ" data-language-local-name="Tiếng Guarani" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wiktionary.org/wiki/N" title="N – Tiếng Croatia" lang="hr" hreflang="hr" data-title="N" data-language-autonym="Hrvatski" data-language-local-name="Tiếng Croatia" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wiktionary.org/wiki/N" title="N – Tiếng Hungary" lang="hu" hreflang="hu" data-title="N" data-language-autonym="Magyar" data-language-local-name="Tiếng Hungary" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wiktionary.org/wiki/N" title="N – Tiếng Ido" lang="io" hreflang="io" data-title="N" data-language-autonym="Ido" data-language-local-name="Tiếng Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wiktionary.org/wiki/N" title="N – Tiếng Iceland" lang="is" hreflang="is" data-title="N" data-language-autonym="Íslenska" data-language-local-name="Tiếng Iceland" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wiktionary.org/wiki/N" title="N – Tiếng Italy" lang="it" hreflang="it" data-title="N" data-language-autonym="Italiano" data-language-local-name="Tiếng Italy" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wiktionary.org/wiki/N" title="N – Tiếng Nhật" lang="ja" hreflang="ja" data-title="N" data-language-autonym="日本語" data-language-local-name="Tiếng Nhật" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wiktionary.org/wiki/N" title="N – Tiếng Khmer" lang="km" hreflang="km" data-title="N" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="Tiếng Khmer" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wiktionary.org/wiki/N" title="N – Tiếng Hàn" lang="ko" hreflang="ko" data-title="N" data-language-autonym="한국어" data-language-local-name="Tiếng Hàn" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wiktionary.org/wiki/N" title="N – Tiếng Kurd" lang="ku" hreflang="ku" data-title="N" data-language-autonym="Kurdî" data-language-local-name="Tiếng Kurd" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wiktionary.org/wiki/N" title="N – Tiếng Limburg" lang="li" hreflang="li" data-title="N" data-language-autonym="Limburgs" data-language-local-name="Tiếng Limburg" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-ln mw-list-item"><a href="https://ln.wiktionary.org/wiki/N" title="N – Tiếng Lingala" lang="ln" hreflang="ln" data-title="N" data-language-autonym="Lingála" data-language-local-name="Tiếng Lingala" class="interlanguage-link-target"><span>Lingála</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wiktionary.org/wiki/N" title="N – Tiếng Litva" lang="lt" hreflang="lt" data-title="N" data-language-autonym="Lietuvių" data-language-local-name="Tiếng Litva" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wiktionary.org/wiki/N" title="N – Tiếng Latvia" lang="lv" hreflang="lv" data-title="N" data-language-autonym="Latviešu" data-language-local-name="Tiếng Latvia" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wiktionary.org/wiki/N" title="N – Tiếng Malagasy" lang="mg" hreflang="mg" data-title="N" data-language-autonym="Malagasy" data-language-local-name="Tiếng Malagasy" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mnw mw-list-item"><a href="https://mnw.wiktionary.org/wiki/N" title="N – Mon" lang="mnw" hreflang="mnw" data-title="N" data-language-autonym="ဘာသာမန်" data-language-local-name="Mon" class="interlanguage-link-target"><span>ဘာသာမန်</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wiktionary.org/wiki/N" title="N – Tiếng Hà Lan" lang="nl" hreflang="nl" data-title="N" data-language-autonym="Nederlands" data-language-local-name="Tiếng Hà Lan" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wiktionary.org/wiki/N" title="N – Tiếng Na Uy (Nynorsk)" lang="nn" hreflang="nn" data-title="N" data-language-autonym="Norsk nynorsk" data-language-local-name="Tiếng Na Uy (Nynorsk)" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wiktionary.org/wiki/N" title="N – Tiếng Na Uy" lang="no" hreflang="no" data-title="N" data-language-autonym="Norsk" data-language-local-name="Tiếng Na Uy" class="interlanguage-link-target"><span>Norsk</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wiktionary.org/wiki/N" title="N – Tiếng Ba Lan" lang="pl" hreflang="pl" data-title="N" data-language-autonym="Polski" data-language-local-name="Tiếng Ba Lan" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wiktionary.org/wiki/N" title="N – Tiếng Bồ Đào Nha" lang="pt" hreflang="pt" data-title="N" data-language-autonym="Português" data-language-local-name="Tiếng Bồ Đào Nha" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wiktionary.org/wiki/N" title="N – Tiếng Quechua" lang="qu" hreflang="qu" data-title="N" data-language-autonym="Runa Simi" data-language-local-name="Tiếng Quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wiktionary.org/wiki/N" title="N – Tiếng Romania" lang="ro" hreflang="ro" data-title="N" data-language-autonym="Română" data-language-local-name="Tiếng Romania" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wiktionary.org/wiki/N" title="N – Tiếng Nga" lang="ru" hreflang="ru" data-title="N" data-language-autonym="Русский" data-language-local-name="Tiếng Nga" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wiktionary.org/wiki/N" title="N – Tiếng Sinhala" lang="si" hreflang="si" data-title="N" data-language-autonym="සිංහල" data-language-local-name="Tiếng Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wiktionary.org/wiki/N" title="N – Tiếng Slovak" lang="sk" hreflang="sk" data-title="N" data-language-autonym="Slovenčina" data-language-local-name="Tiếng Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wiktionary.org/wiki/N" title="N – Tiếng Slovenia" lang="sl" hreflang="sl" data-title="N" data-language-autonym="Slovenščina" data-language-local-name="Tiếng Slovenia" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wiktionary.org/wiki/N" title="N – Tiếng Thụy Điển" lang="sv" hreflang="sv" data-title="N" data-language-autonym="Svenska" data-language-local-name="Tiếng Thụy Điển" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wiktionary.org/wiki/N" title="N – Tiếng Thái" lang="th" hreflang="th" data-title="N" data-language-autonym="ไทย" data-language-local-name="Tiếng Thái" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wiktionary.org/wiki/N" title="N – Tiếng Thổ Nhĩ Kỳ" lang="tr" hreflang="tr" data-title="N" data-language-autonym="Türkçe" data-language-local-name="Tiếng Thổ Nhĩ Kỳ" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wiktionary.org/wiki/N" title="N – Tiếng Walloon" lang="wa" hreflang="wa" data-title="N" data-language-autonym="Walon" data-language-local-name="Tiếng Walloon" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wiktionary.org/wiki/N" title="N – Tiếng Trung" lang="zh" hreflang="zh" data-title="N" data-language-autonym="中文" data-language-local-name="Tiếng Trung" class="interlanguage-link-target"><span>中文</span></a></li> </ul> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Không gian tên"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/N" title="Xem mục từ [c]" accesskey="c"><span>Mục từ</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Th%E1%BA%A3o_lu%E1%BA%ADn:N&action=edit&redlink=1" rel="discussion" class="new" title="Thảo luận về trang này (trang không tồn tại) [t]" accesskey="t"><span>Thảo luận</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Thay đổi biến thể ngôn ngữ" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button 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href="/w/index.php?title=N&action=history" title="Các phiên bản cũ của trang này [h]" accesskey="h"><span>Xem lịch sử</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Công cụ trang"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Công cụ" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Công cụ</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Công cụ</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">chuyển sang thanh bên</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">ẩn</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Thêm tùy chọn" > <div class="vector-menu-heading"> Tác vụ </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/N"><span>Đọc</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=N&action=edit" title="Sửa đổi trang này [e]" accesskey="e"><span>Sửa đổi</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=N&action=history"><span>Xem lịch sử</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Chung </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%C4%90%E1%BA%B7c_bi%E1%BB%87t:Li%C3%AAn_k%E1%BA%BFt_%C4%91%E1%BA%BFn_%C4%91%C3%A2y/N" title="Các trang liên kết đến đây [j]" accesskey="j"><span>Các liên kết đến đây</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%C4%90%E1%BA%B7c_bi%E1%BB%87t:Thay_%C4%91%E1%BB%95i_li%C3%AAn_quan/N" rel="nofollow" title="Thay đổi gần đây của các trang liên kết đến đây [k]" accesskey="k"><span>Thay đổi liên quan</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=vi" title="Tải tập tin lên [u]" accesskey="u"><span>Tải lên tập tin</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/%C4%90%E1%BA%B7c_bi%E1%BB%87t:Trang_%C4%91%E1%BA%B7c_bi%E1%BB%87t" title="Một danh sách chứa tất cả trang đặc biệt [q]" accesskey="q"><span>Trang đặc biệt</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=N&oldid=2019501" title="Liên kết thường trực đến phiên bản này của trang"><span>Liên kết thường trực</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=N&action=info" title="Thêm chi tiết về trang này"><span>Thông tin trang</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%C4%90%E1%BA%B7c_bi%E1%BB%87t:Tr%C3%ADch_d%E1%BA%ABn&page=N&id=2019501&wpFormIdentifier=titleform" title="Hướng dẫn cách trích dẫn trang này"><span>Trích dẫn trang này</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=%C4%90%E1%BA%B7c_bi%E1%BB%87t:UrlShortener&url=https%3A%2F%2Fvi.wiktionary.org%2Fwiki%2FN"><span>Lấy URL ngắn gọn</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=%C4%90%E1%BA%B7c_bi%E1%BB%87t:QrCode&url=https%3A%2F%2Fvi.wiktionary.org%2Fwiki%2FN"><span>Tải mã QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> In/xuất ra </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=%C4%90%E1%BA%B7c_bi%E1%BB%87t:S%C3%A1ch&bookcmd=book_creator&referer=N"><span>Tạo một quyển sách</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%C4%90%E1%BA%B7c_bi%E1%BB%87t:DownloadAsPdf&page=N&action=show-download-screen"><span>Tải dưới dạng PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=N&printable=yes" title="Bản để in ra của trang [p]" accesskey="p"><span>Bản in được</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects emptyPortlet" > <div class="vector-menu-heading"> Tại dự án khác </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Công cụ trang"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Giao diện"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Giao diện</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">chuyển sang thanh bên</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">ẩn</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Từ điển mở Wiktionary</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="vi" dir="ltr"><div class="sister-wikipedia sister-project noprint floatright" style="border: 1px solid #aaa; font-size: 90%; background: #f9f9f9; width: 250px; padding: 4px; text-align: left;"><div style="float: left;"><figure class="mw-halign-none" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/44px-Wikipedia-logo-v2.svg.png" decoding="async" width="44" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/66px-Wikipedia-logo-v2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/88px-Wikipedia-logo-v2.svg.png 2x" data-file-width="103" data-file-height="94" /></span><figcaption></figcaption></figure></div><div style="margin-left: 60px;"> <a href="/wiki/Wikipedia" title="Wikipedia">Wikipedia</a> tiếng Việt có bài viết về:<div style="margin-left: 10px;"><b class="Latn" lang="vi"><a href="https://vi.wikipedia.org/wiki/N" class="extiw" title="w:N">N</a></b></div></div></div> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Tiếng_Việt"><span id="Ti.E1.BA.BFng_Vi.E1.BB.87t"></span><span class="lang lang-vie" data-iso="vie" title="Mã ngôn ngữ: vie">Tiếng Việt</span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=B%E1%BA%A3n_m%E1%BA%ABu:-vie-&action=edit&section=T-1" title="Sửa đổi đề mục “Tiếng Việt”"><span>sửa</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable floatright character-info" style="width:25em;"> <tbody><tr> <td colspan="2" style="text-align: center;"><span typeof="mw:File"><a href="/wiki/T%E1%BA%ADp_tin:Unicode_0x004E.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Unicode_0x004E.svg/120px-Unicode_0x004E.svg.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Unicode_0x004E.svg/180px-Unicode_0x004E.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Unicode_0x004E.svg/240px-Unicode_0x004E.svg.png 2x" data-file-width="16" data-file-height="16" /></a></span><br /> </td></tr> <tr> <td style="width: 70px;" colspan="2"><table><tbody><tr><td><span class="character-sample-primary Latn">N</span></td><td> <a rel="nofollow" class="external text" href="https://util.unicode.org/UnicodeJsps/character.jsp?a=004E">U+004E</a>, <a href="https://vi.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references" class="extiw" title="w:List of XML and HTML character entity references">&#78;</a> <div class="character-sample-name">LATIN CAPITAL LETTER N</div></td></tr></tbody></table><table style="width:100%;font-size:80%;white-space:nowrap"><tbody><tr><td style="width:50%;text-align:left"></td><td style="width:50%;text-align:right"></td></tr></tbody></table> <table style="width:100%;text-align:center"><tbody><tr><td style="width:20%"><a href="/wiki/M" title="M"><span title="LATIN CAPITAL LETTER M">← <span class="character-sample-secondary Latn">M</span><br /><small>[U+004D]</small></span></a> </td><td style="width:60%;font-size:110%;font-weight:bold"><a href="/wiki/Ph%E1%BB%A5_l%E1%BB%A5c:Unicode/Basic_Latin" title="Phụ lục:Unicode/Basic Latin">Basic Latin</a> </td><td style="width:20%"><a href="/wiki/O" title="O"><span title="LATIN CAPITAL LETTER O"><span class="character-sample-secondary Latn">O</span> →<br /><small>[U+004F]</small></span></a> </td></tr></tbody></table> </td></tr></tbody></table><style data-mw-deduplicate="TemplateStyles:r2033700">.mw-parser-output .character-sample{display:inline-block;min-width:1em;font-size:300%;text-align:center;background:rgb(0,0,0);background:rgba(0,0,0,0.1)}.mw-parser-output .character-sample>:only-child{display:block}.mw-parser-output .character-sample-primary{display:inline-table;min-width:1.1em;font-size:300%;line-height:110%;text-align:center;background:rgb(0,0,0);background:rgba(0,0,0,0.1);height:1.1em}.mw-parser-output .character-sample-secondary{display:inline-block;min-width:1em;text-align:center}</style> <div class="mw-heading mw-heading3"><h3 id="Từ_viết_tắt"><span id="T.E1.BB.AB_vi.E1.BA.BFt_t.E1.BA.AFt"></span>Từ viết tắt</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=B%E1%BA%A3n_m%E1%BA%ABu:-abbr-&action=edit&section=T-1" title="Sửa đổi đề mục “Từ viết tắt”"><span>sửa</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>N</b> </p> <ol><li>(<i>Vật lý</i>) <a href="/wiki/k%C3%BD" title="ký">Ký</a> <a href="/wiki/hi%E1%BB%87u" title="hiệu">hiệu</a> của <a href="/wiki/niu-t%C6%A1n" title="niu-tơn">niu-tơn</a>.</li> <li>(<i><a href="/wiki/H%C3%B3a_h%E1%BB%8Dc" class="mw-redirect" title="Hóa học">Hóa học</a></i>) <span class="use-with-mention">Viết tắt của <span class="mention"><a href="/wiki/nit%C6%A1" title="nitơ">nitơ</a></span></span></li></ol> <div class="mw-heading mw-heading4"><h4 id="Dịch"><span id="D.E1.BB.8Bch"></span>Dịch</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=B%E1%BA%A3n_m%E1%BA%ABu:-trans-&action=edit&section=T-1" title="Sửa đổi đề mục “Dịch”"><span>sửa</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Tham_khảo"><span id="Tham_kh.E1.BA.A3o"></span>Tham khảo</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=B%E1%BA%A3n_m%E1%BA%ABu:-ref-&action=edit&section=T-1" title="Sửa đổi đề mục “Tham khảo”"><span>sửa</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>"<a rel="nofollow" class="external text" href="http://www.informatik.uni-leipzig.de/~duc/TD/td/index.php?word=N&db=vv&fmt=u">N</a>", Hồ Ngọc Đức, <a rel="nofollow" class="external text" href="http://www.informatik.uni-leipzig.de/~duc/Dict/">Dự án Từ điển tiếng Việt miễn phí</a> (<a href="/wiki/Wiktionary:Ngu%E1%BB%93n_g%E1%BB%91c/FVDP" title="Wiktionary:Nguồn gốc/FVDP">chi tiết</a>)</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" 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