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class="mt-8 border-b border-line pb-10"><div class="grid gap-x-14 gap-y-9 lg:grid-cols-[minmax(0,1.55fr)_minmax(0,0.85fr)]"><div><div class="flex flex-wrap items-end gap-x-6 gap-y-4"><h1 class="relative inline-block text-[3.5rem] leading-none sm:text-[4.5rem]"><span class="type-serif gilt block">index</span><svg viewBox="0 0 300 14" preserveAspectRatio="none" class="absolute right-[0.18em] bottom-[-0.11em] left-0 h-[0.085em]" aria-hidden="true"><defs><linearGradient id="_R_iajav5ubtb_" x1="0%" y1="0%" x2="100%" y2="0%"><stop offset="0%" stop-color="var(--color-rose-start)"></stop><stop offset="52%" stop-color="var(--color-rose)"></stop><stop offset="100%" stop-color="var(--color-rose-end)"></stop></linearGradient></defs><path d="M3 11.2C58 5.4 132 2.6 297 4.4" fill="none" stroke="url(#_R_iajav5ubtb_)" stroke-width="3.2" stroke-linecap="round" pathLength="1"></path></svg></h1><div class="flex flex-wrap items-center gap-2.5 pb-2"><span class="type-display inline-flex items-center gap-1.5 rounded-full border px-2.5 py-1 text-[0.7rem] font-medium tracking-[0.08em] uppercase " style="color:var(--color-bone);border-color:color-mix(in oklab, var(--color-bone) 38%, transparent);background:color-mix(in oklab, var(--color-bone) 11%, transparent)"><span class="opacity-60">CEFR</span>B1</span></div></div><div class="mt-6 flex flex-wrap items-center gap-x-4 gap-y-2"><p class="type-serif text-lg italic text-paper-3">/ˈɪndɛks/</p><span aria-hidden="true" class="h-4 w-px bg-line-2"></span><p class="text-sm text-paper-2">noun</p></div><div class="mt-5 flex min-h-11 flex-wrap items-center gap-x-4 gap-y-3"><div class="min-w-0" aria-live="polite"><p class="type-display text-[0.62rem] tracking-[0.12em] text-paper-2 uppercase">Türkçe<!-- --> translations</p><p lang="tr" dir="ltr" class="type-serif mt-0.5 text-[1.25rem] leading-snug text-[var(--color-success)]">Translating…</p></div><label class="relative inline-flex w-full items-center justify-between rounded-lg border border-line bg-surface px-3 py-2 text-sm text-paper-2 transition-colors focus-within:border-[var(--color-success)] sm:ml-auto sm:w-auto"><span class="sr-only">Translation language</span><select class="cursor-pointer appearance-none bg-transparent pr-5 text-sm text-paper outline-none" aria-label="Translation language"><option value="tr" class="bg-surface text-paper" selected="">🇹🇷<!-- --> <!-- -->Türkçe</option><option value="de" class="bg-surface text-paper">🇩🇪<!-- --> <!-- -->Deutsch</option><option value="fr" class="bg-surface text-paper">🇫🇷<!-- --> <!-- -->Français</option><option value="es" class="bg-surface text-paper">🇪🇸<!-- --> <!-- -->Español</option><option value="it" class="bg-surface text-paper">🇮🇹<!-- --> <!-- -->Italiano</option><option value="pt" class="bg-surface text-paper">🇧🇷<!-- --> <!-- -->Português</option><option value="ru" class="bg-surface text-paper">🇷🇺<!-- --> <!-- -->Русский</option><option value="ja" class="bg-surface text-paper">🇯🇵<!-- --> <!-- -->日本語</option><option value="ko" class="bg-surface text-paper">🇰🇷<!-- --> <!-- -->한국어</option><option value="zh" class="bg-surface text-paper">🇨🇳<!-- --> <!-- -->中文</option><option value="ar" class="bg-surface text-paper">🇸🇦<!-- --> <!-- -->العربية</option><option value="hi" class="bg-surface text-paper">🇮🇳<!-- --> <!-- -->हिन्दी</option><option value="nl" class="bg-surface text-paper">🇳🇱<!-- --> <!-- -->Nederlands</option><option value="pl" class="bg-surface text-paper">🇵🇱<!-- --> <!-- -->Polski</option><option value="sv" class="bg-surface text-paper">🇸🇪<!-- --> <!-- -->Svenska</option><option value="da" class="bg-surface text-paper">🇩🇰<!-- --> <!-- -->Dansk</option><option value="fi" class="bg-surface text-paper">🇫🇮<!-- --> <!-- -->Suomi</option><option value="no" class="bg-surface text-paper">🇳🇴<!-- --> <!-- -->Norsk</option><option value="cs" class="bg-surface text-paper">🇨🇿<!-- --> <!-- -->Čeština</option><option value="ro" class="bg-surface text-paper">🇷🇴<!-- --> <!-- -->Română</option><option value="hu" class="bg-surface text-paper">🇭🇺<!-- --> <!-- -->Magyar</option><option value="uk" class="bg-surface text-paper">🇺🇦<!-- --> <!-- -->Українська</option><option value="el" class="bg-surface text-paper">🇬🇷<!-- --> <!-- -->Ελληνικά</option><option value="bg" class="bg-surface text-paper">🇧🇬<!-- --> <!-- -->Български</option><option value="vi" class="bg-surface text-paper">🇻🇳<!-- --> <!-- -->Tiếng Việt</option><option value="th" class="bg-surface text-paper">🇹🇭<!-- --> <!-- -->ไทย</option><option value="id" class="bg-surface text-paper">🇮🇩<!-- --> <!-- -->Bahasa Indonesia</option><option value="ms" class="bg-surface text-paper">🇲🇾<!-- --> <!-- -->Melayu</option><option value="he" class="bg-surface text-paper">🇮🇱<!-- --> <!-- -->עברית</option><option value="fa" class="bg-surface text-paper">🇮🇷<!-- --> <!-- -->فارسی</option><option value="sk" class="bg-surface text-paper">🇸🇰<!-- --> <!-- -->Slovenčina</option><option value="hr" class="bg-surface text-paper">🇭🇷<!-- --> <!-- -->Hrvatski</option><option value="sr" class="bg-surface text-paper">🇷🇸<!-- --> <!-- -->Srpski</option><option value="lt" class="bg-surface text-paper">🇱🇹<!-- --> <!-- -->Lietuvių</option><option value="lv" class="bg-surface text-paper">🇱🇻<!-- --> <!-- -->Latviešu</option><option value="et" class="bg-surface text-paper">🇪🇪<!-- --> <!-- -->Eesti</option><option value="ka" class="bg-surface text-paper">🇬🇪<!-- --> <!-- -->ქართული</option><option value="az" class="bg-surface text-paper">🇦🇿<!-- --> <!-- -->Azərbaycanca</option></select><svg aria-hidden="true" viewBox="0 0 12 8" class="pointer-events-none absolute right-3 h-2 w-3 text-paper-3" fill="none" stroke="currentColor" stroke-width="1.5"><path d="m1 1.5 5 5 5-5"></path></svg></label></div><div class="plain-panel mt-8 p-6 sm:p-7"><p class="plain-panel-title">In plain English</p><ol class="mt-5 space-y-5"><li class="grid grid-cols-[1.75rem_minmax(0,1fr)] gap-3"><span class="plain-panel-index type-display pt-1 text-[0.66rem] tracking-[0.1em]">01</span><div><div class="flex flex-wrap items-center gap-2"><p class="plain-panel-pos type-display text-[0.66rem] tracking-[0.12em] uppercase">noun</p></div><p class="type-serif mt-1.5 text-[1.22rem] leading-snug text-bone">An alphabetical list that helps you find information in a book.</p></div></li><li class="grid grid-cols-[1.75rem_minmax(0,1fr)] gap-3"><span class="plain-panel-index type-display pt-1 text-[0.66rem] tracking-[0.1em]">02</span><div><div class="flex flex-wrap items-center gap-2"><p class="plain-panel-pos type-display text-[0.66rem] tracking-[0.12em] uppercase">noun</p></div><p class="type-serif mt-1.5 text-[1.22rem] leading-snug text-bone">A number showing how a value compares with a standard.</p></div></li></ol><div class="plain-panel-examples mt-6 border-t pt-5"><p class="plain-panel-subhead type-display text-[0.66rem] tracking-[0.12em] uppercase">Examples</p><ul class="mt-4 space-y-5"><li class="grid grid-cols-[1.75rem_minmax(0,1fr)] gap-3"><span aria-hidden="true" class="plain-example-mark type-serif text-[1.4rem] leading-none">“</span><p class="type-serif text-[1.2rem] leading-snug text-bone">The stock price <mark class="example-word-highlight">index</mark> soared to an all-time high.</p></li><li class="grid grid-cols-[1.75rem_minmax(0,1fr)] gap-3"><span aria-hidden="true" class="plain-example-mark type-serif text-[1.4rem] leading-none">“</span><p class="type-serif text-[1.2rem] leading-snug text-bone">The stock price <mark class="example-word-highlight">index</mark> was off 200 points yesterday.</p></li></ul></div></div></div><div class="self-start space-y-4"><div class="card p-6"><p class="eyebrow">At a glance</p><div class="mt-5 flex items-center gap-4"><span class="ladder flex items-end " style="gap:3px" aria-hidden="true"><span style="height:9px;width:4px;transition-delay:0ms"></span><span style="height:12px;width:4px;transition-delay:45ms"></span><span data-lit="true" style="height:15px;width:4px;transition-delay:90ms"></span><span style="height:18px;width:4px;transition-delay:135ms"></span><span style="height:21px;width:4px;transition-delay:180ms"></span><span style="height:24px;width:4px;transition-delay:225ms"></span></span><p class="text-sm text-paper-3">Sits at<!-- --> <span class="text-paper">B1</span> on the CEFR scale</p></div><dl class="mt-6 space-y-3 border-t border-line pt-5 text-sm"><div class="flex items-baseline justify-between gap-4"><dt class="text-paper-3">Senses</dt><dd class="type-display text-paper">5</dd></div><div class="flex items-baseline justify-between gap-4"><dt class="text-paper-3">Parts of speech</dt><dd class="type-display text-paper">1</dd></div><div class="flex items-baseline justify-between gap-4"><dt class="text-paper-3">Citations</dt><dd class="type-display text-paper">5</dd></div><div class="flex items-baseline justify-between gap-4"><dt class="text-paper-3">Synonyms</dt><dd class="type-display text-paper">5</dd></div></dl><div class="mt-6 border-t border-line pt-5"><p class="text-sm text-paper-3">Also pronounced</p><ul class="mt-2 space-y-1"><li class="type-serif text-[0.95rem] italic text-paper-2">/ˈɪndeks/</li></ul></div></div><div class="relative"><div class="flex items-center gap-3 rounded-full border border-line bg-surface transition-colors duration-200 focus-within:border-line-2 px-4 py-2.5"><svg viewBox="0 0 24 24" class="shrink-0 text-paper-3 h-4 w-4" aria-hidden="true" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><circle cx="11" cy="11" r="7"></circle><path d="M20 20l-3.6-3.6"></path></svg><input type="search" role="combobox" aria-expanded="false" aria-controls="_R_kjav5ubtb_" aria-autocomplete="list" aria-label="Search the dictionary" placeholder="Look up another word…" autoComplete="off" autoCapitalize="off" spellCheck="false" class="w-full bg-transparent text-paper outline-none placeholder:text-paper-3 text-[0.95rem]" value=""/></div></div></div></div></header><div class="mt-16 grid gap-x-14 gap-y-16 lg:grid-cols-[minmax(0,1.55fr)_minmax(0,0.85fr)]"><div class="min-w-0"><section class="deep-dive-section"><div id="deep-dive" data-tone="blue" class="dictionary-ribbon scroll-mt-28"><h2>Deep Dive</h2></div><div class="mt-8 space-y-12"><div><div class="flex flex-wrap items-baseline gap-x-3 gap-y-1"><h3 class="deep-dive-pos type-serif text-xl italic">noun</h3><span class="type-display text-[0.62rem] tracking-[0.1em] text-paper-3 uppercase">Extra meanings</span></div><ol class="sense-list mt-5 space-y-6"><li><p class="text-[1.08rem] leading-relaxed text-paper">A movable finger on a gauge, scale, etc.</p></li><li><p class="text-[1.08rem] leading-relaxed text-paper">The index finger; the forefinger.</p></li><li><p class="text-[1.08rem] leading-relaxed text-paper">An alphabetical listing of items and their location.</p></li></ol></div><div><div class="flex flex-wrap items-baseline gap-x-3 gap-y-1"><h3 class="deep-dive-pos type-serif text-xl italic">More examples</h3><span class="type-display text-[0.62rem] tracking-[0.1em] text-paper-3 uppercase">In context</span></div><ul class="mt-5 space-y-3"><li class="card p-5"><p class="type-serif text-[1.1rem] leading-relaxed text-paper">Look it up in the <mark class="example-word-highlight">index</mark>.</p></li><li class="card p-5"><p class="type-serif text-[1.1rem] leading-relaxed text-paper">Among the gravity indexes is the severance of diplomatic relations.</p></li><li class="card p-5"><p class="type-serif text-[1.1rem] leading-relaxed text-paper">He isn&#x27;t able to find the <mark class="example-word-highlight">index</mark> of the book.</p></li></ul></div></div></section><section class="mt-14"><h2 id="related" data-tone="teal" class="dictionary-section-head flex scroll-mt-28 items-center gap-3"><span aria-hidden="true" class="h-px w-9 bg-current"></span>Related</h2><div class="mt-7 grid gap-4 sm:grid-cols-2"><div class="related-panel related-panel-synonyms"><p class="related-panel-label">Synonyms</p><ul class="mt-4 flex flex-wrap gap-2"><li><a href="/words/?word=arrow-finger" class="related-chip related-chip-synonym">arrow-finger</a></li><li><a href="/words/?word=demonstrator" class="related-chip related-chip-synonym">demonstrator</a></li><li><a href="/words/?word=first%20finger" class="related-chip related-chip-synonym">first finger</a></li><li><a href="/words/?word=forefinger" class="related-chip related-chip-synonym">forefinger</a></li><li><a href="/words/?word=index%20finger" class="related-chip related-chip-synonym">index finger</a></li></ul></div></div></section><section class="mt-16"><h2 id="test" data-tone="gold" class="dictionary-section-head flex scroll-mt-28 items-center gap-3"><span aria-hidden="true" class="h-px w-9 bg-current"></span>Quick test</h2><p class="mt-4 text-sm text-paper-3">Two questions on this entry. Nothing is scored.</p><div class="mt-8"><div class="space-y-4"><article class="card p-6 sm:p-7" aria-labelledby="dictionary-quiz-question"><div class="flex flex-wrap items-center justify-between gap-3"><p class="eyebrow">Question <!-- -->1<!-- --> · <!-- -->Quick check</p><button type="button" class="question-variant-toggle">Try another question</button></div><h3 id="dictionary-quiz-question" class="type-serif mt-3 text-[1.15rem] leading-relaxed text-paper">To find information quickly, she looked at the <span class="slot" data-filled="false"><span class="sr-only">blank</span><span class="opacity-0" aria-hidden="true">—</span></span> at the back of the book.</h3><div class="mt-5 grid gap-2.5 sm:grid-cols-2" role="group" aria-labelledby="dictionary-quiz-question"><button type="button" class="opt"><span class="opt-key" aria-hidden="true">A</span><span class="opt-label">spine</span></button><button type="button" class="opt"><span class="opt-key" aria-hidden="true">B</span><span class="opt-label">cover</span></button><button type="button" class="opt"><span class="opt-key" aria-hidden="true">C</span><span class="opt-label">title</span></button><button type="button" class="opt"><span class="opt-key" aria-hidden="true">D</span><span class="opt-label">index</span></button></div><div class="mt-4 min-h-[1.5rem]" aria-live="polite"></div></article><p class="flex items-center gap-2 pt-1 text-sm text-paper-3"><svg viewBox="0 0 24 24" class="h-4 w-4" aria-hidden="true"><path d="M12 20V5m0 0l-6 6m6-6l6 6" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"></path></svg>Practise this properly in the app, where the word comes back before you forget it.</p></div></div></section><section class="mt-16"><h2 id="nearby" data-tone="blue" class="dictionary-section-head flex scroll-mt-28 items-center gap-3"><span aria-hidden="true" class="h-px w-9 bg-current"></span>Nearby</h2><ul class="mt-6 flex flex-wrap gap-x-5 gap-y-2"><li><a href="/words/?word=indeterministically" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indeterministically</a></li><li><a href="/words/?word=indevotional" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indevotional</a></li><li><a href="/words/?word=indevoutly" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indevoutly</a></li><li><a href="/words/?word=indevoutness" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indevoutness</a></li><li><a href="/words/?word=index-linked" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">index-linked</a></li><li><a href="/words/?word=indexability" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indexability</a></li><li><a href="/words/?word=indexable" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indexable</a></li><li><a href="/words/?word=indexal" class="type-serif text-[1.05rem] text-paper-2 transition-colors hover:text-bone">indexal</a></li></ul></section></div><aside class="min-w-0"><section><div id="citations" data-tone="teal" class="dictionary-ribbon scroll-mt-28"><h2>Citations</h2></div><p class="mt-4 text-sm leading-relaxed text-paper-3">The word in print, with each source given in full.</p><ul class="mt-7 space-y-7"><li class="min-w-0 border-t border-line pt-5 first:border-t-0 first:pt-0"><blockquote class="type-serif text-[0.98rem] leading-[1.75] text-paper-2 [overflow-wrap:anywhere] [word-break:break-word]">Tastes are the Indexes of the different Qualities of Plants.</blockquote><cite class="mt-3 block text-[0.76rem] leading-relaxed text-paper-3 not-italic [overflow-wrap:anywhere] [word-break:break-word]">1731, John Arbuthnot, An Essay Concerning the Nature of Aliments, and the Choice of Them, According to the Different Constitutions of Human Bodies. […], London: […] J[acob] Tonson...</cite></li><li class="min-w-0 border-t border-line pt-5 first:border-t-0 first:pt-0"><blockquote class="type-serif text-[0.98rem] leading-[1.75] text-paper-2 [overflow-wrap:anywhere] [word-break:break-word]">His son&#x27;s empty guffaws […] struck him with pain as the indices of a weak mind.</blockquote><cite class="mt-3 block text-[0.76rem] leading-relaxed text-paper-3 not-italic [overflow-wrap:anywhere] [word-break:break-word]">1887, Robert Louis Stevenson, The Misadventures of John Nicholson</cite></li><li class="min-w-0 border-t border-line pt-5 first:border-t-0 first:pt-0"><blockquote class="type-serif text-[0.98rem] leading-[1.75] text-paper-2 [overflow-wrap:anywhere] [word-break:break-word]">Their use of these words as epithets is an <mark class="example-word-highlight">index</mark> of an appallingly low level of feminist awareness.</blockquote><cite class="mt-3 block text-[0.76rem] leading-relaxed text-paper-3 not-italic [overflow-wrap:anywhere] [word-break:break-word]">1984 December 22, Gayle Rubin, “Censored: Anti-Porn Laws And Women&#x27;s Liberation”, in Gay Community News, volume 12, number 23, page 8</cite></li><li class="min-w-0 border-t border-line pt-5 first:border-t-0 first:pt-0"><blockquote class="type-serif text-[0.98rem] leading-[1.75] text-paper-2 [overflow-wrap:anywhere] [word-break:break-word]">In other words, we predict that the <mark class="example-word-highlight">index</mark> for a new pair of materials can be obtained from the indexes of the individual materials, both against air or against vacuum.</blockquote><cite class="mt-3 block text-[0.76rem] leading-relaxed text-paper-3 not-italic [overflow-wrap:anywhere] [word-break:break-word]">1963, Richard Feynman, “Chapter 26, Optics: The Principle of Least Time”, in The Feynman Lectures on Physics, volume I</cite></li><li class="min-w-0 border-t border-line pt-5 first:border-t-0 first:pt-0"><blockquote class="type-serif text-[0.98rem] leading-[1.75] text-paper-2 [overflow-wrap:anywhere] [word-break:break-word]">For thousands of years, human progress was indexed to the ease and speed of our mobility: our capacity to walk on two legs, and then to ride on animals, sail on boats, chug across the land and fly through the air, all to procure for ourselves the food and materials we wanted.</blockquote><cite class="mt-3 block text-[0.76rem] leading-relaxed text-paper-3 not-italic [overflow-wrap:anywhere] [word-break:break-word]">2019 November 21, Samanth Subramanian, “How our home delivery habit reshaped the world”, in The Guardian</cite></li></ul></section><div class="card p-6 mt-14"><h2 class="type-display text-lg text-paper">Keep <!-- -->index</h2><p class="mt-2.5 text-[0.925rem] leading-relaxed text-paper-2">Looking a word up is the easy part. 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