Standard Lemma guide

category

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈkæ.tɪ.ɡə.ɹi/
  • Received-Pronunciation: /-ɡɹi/
  • Canada, General-American: /ˈkæ.tɪˌɡɔ.ɹi/
  • Canada, General-American: [ˈkhæ.ɾəˌɡɔ.ɹi]
  • Canada, General-American: /ˈkæ.təˌɡɔ.ɹi/
  • Canada, General-American: [ˈkæ.ɾəˌɡɔ.ɹi]
  • Australian: /ˈkæ.tɪ.ɡə.ɹi/
  • Australian: /-ɡə.ɹi/
  • Australian: [ˈkhæ.ɾɪ.ɡə.ɹi]
  • New-Zealand: /ˈkɛ.tɘˌɡoː.ɹi/
  • New-Zealand: /-ɡɘ.ɹi/
  • New-Zealand: /-ɡɹi/
  • India, North: /kæːˈʈeɡə.riː/
  • India, South: /ˈkæː.ʈə.ɡə.riː/
  • Philippines: /kaˈtɛˌɡoɹi/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: K AE1 T AH0 G AO2 R IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A group, often named or numbered, to which items are assigned based on similarity or defined criteria.

Definition source: English Wiktionary via Wiktextract

Examples

  • This steep and dangerous climb belongs to the most difficult category.
  • I wouldn’t put this book in the same category as the author’s first novel.

Meaning relationships

Synonyms: class, family, genus, kingdom, order, pigeonhole, phylum, race, tribe, type, category, description, stripe, fashion, division, genre, ilk, kind, likes, rubric, set, sort

Antonyms: none provided

2

noun

Meaning 2

A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

Examples

  • One well-known category has sets as objects and functions as arrows.
  • Just as a monoid consists of an underlying set with a binary operation "on top of it" which is closed, associative and with an identity, a category consists of an underlying digraph with an arrow composition operation "on top of it" which is transitively closed, associative, and with an identity at each object. In fact, a category's composition operation, when restricted to a single one of its objects, turns that object's set of arrows (which would all be loops) into a monoid.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a general concept that marks divisions or coordinations in a conceptual scheme

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: concept, conception, construct

Narrower terms: kind, sort, form, variety, pigeonhole, rubric, way

4

noun

Meaning 4

a collection of things sharing a common attribute

Definition source: Princeton WordNet 3.0

Examples

  • there are two classes of detergents

Meaning relationships

Synonyms: class, family

Antonyms: none provided

Broader terms: collection, aggregation, accumulation, assemblage

Narrower terms: grammatical category, syntactic category, substitution class, paradigm, brass family, violin family, woodwind family, stamp, sex, declension, conjugation, denomination, histocompatibility complex

History

Etymology

Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Indo-European *ḱm̥-th2der.? Proto-Hellenic *kətá Ancient Greek κᾰτᾰ́ (kătắ) Ancient Greek κᾰτᾰ- (kătă-) Proto-Indo-European *h2ger- Proto-Indo-European *h2goréh2 Proto-Hellenic *agorā́ Ancient Greek ᾰ̓γορᾱ́ (ăgorā́) Ancient Greek -εύς (-eús) Ancient Greek -εύω (-eúō) Ancient Greek ἀγορεύω (agoreúō) Ancient Greek κᾰτήγορος (kătḗgoros) Proto-Indo-European *-eti Proto-Indo-European *-eyéti Proto-Indo-European *-esyéti Proto-Indo-European *-éh1ti Proto-Indo-European *-yeti Proto-Indo-European *-éh1yeti Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Ancient Greek -έω (-éō) Ancient Greek κᾰτηγορέω (kătēgoréō) Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-i-eh2 Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Ancient Greek κᾰτηγορῐ́ᾱ (kătēgorĭ́ā)bor. Late Latin catēgoriader. Middle French categorie French catégoriebor. Middle English English category Late Middle English, borrowed from French catégorie, from Middle French categorie, from Late Latin catēgoria (“class of predicables”), from Ancient Greek κατηγορία (katēgoría, “head of predicables”). Doublet of categoria.

Across languages

Translations

151 source translations are retained for this English entry.

  • Afrikaans: kategorie — group
  • Albanian: kategori — group
  • Arabic: فِئَة (fiʔa) — group
  • Armenian: կատեգորիա (kategoria) — group
  • Armenian: կարգ (karg) — group
  • Armenian: ստորոգում (storogum) — group
  • Asturian: categoría — group
  • Azerbaijani: kateqoriya — group
  • Basque: kategoria — group
  • Belarusian: катэго́рыя (katehóryja) — group
  • Bengali: বিষয়শ্রেণী (biśoẏosreni) — group
  • Bulgarian: катего́рия (kategórija) — group
  • Burmese: မျိုး (myui:) — group
  • Burmese: ဂိုဏ်း (guin:) — group
  • Catalan: categoria — group
  • Chinese Mandarin: 類別 /类别 (lèibié) — group
  • Chinese Mandarin: 分類 /分类 (fēnlèi) — group
  • Chinese Mandarin: 範疇 /范畴 (fànchóu) — group
  • Czech: kategorie — group
  • Danish: kategori — group
  • Dutch: categorie — group
  • Esperanto: kategorio — group
  • Estonian: kategooria — group
  • Finnish: luokka — group
  • Finnish: kategoria — group
  • French: catégorie — group
  • Galician: categoría — group
  • Georgian: კატეგორია (ḳaṭegoria) — group
  • German: Kategorie — group
  • Greek: κατηγορία (katigoría) — group
  • Ancient Greek: κατηγορία (katēgoría) — group
  • Hawaiian: mahele — group
  • Hebrew: סוּג (sug) — group
  • Hindi: वर्ग (varg) — group
  • Hindi: श्रेणी (śreṇī) — group
  • Hungarian: kategória — group
  • Icelandic: flokkur — group
  • Ido: kategorio — group
  • Igbo: òtù — group
  • Irish: catagóir — group
  • Italian: categoria — group
  • Japanese: 部門 (bumon) — group
  • Japanese: 分類 (bunrui) — group
  • Japanese: 種別 (shubetsu) — group
  • Japanese: 範疇 (hanchū) — group
  • Japanese: カテゴリ — group
  • Karakalpak: kategoriya — group
  • Kashmiri: وَرگ (varg) — group
  • Kazakh: санат (sanat) — group
  • Khmer: ចំពូក (cɑmpuuk) — group
  • Khmer: ប្រភេទ (prɑɑpheit) — group
  • Korean: 부문 (bumun) — group
  • Korean: 분류 (bullyu) — group
  • Korean: 종별 (jongbyeol) — group
  • Korean: 범주 (beomju) — group
  • Korean: 카테고리 (kategori) — group
  • Kyrgyz: категория (kategoriya) — group
  • Lao: ຊະນິດ (sa nit) — group
  • Lao: ຫມວດ (mūat) — group
  • Lao: ປະເພດ (pa phēt) — group
  • Latin: categoria — group
  • Latvian: kategorija — group
  • Lithuanian: kategorija — group
  • Macedonian: категорија (kategorija) — group
  • Macedonian: видоред (vidored) — group
  • Malayalam: വർഗ്ഗം (vaṟggaṁ) — group
  • Malayalam: തരം (taraṁ) — group
  • Māori: rōpū — group
  • Māori: kāwai — group
  • Marathi: वर्ग (varga) — group
  • Mongolian: ангилал (angilal) — group
  • Norwegian Bokmål: kategori — group
  • Norwegian Nynorsk: kategori — group
  • Pannonian Rusyn: катеґория (kategorija) — group
  • Iranian Persian: رَدِه (rade) — group
  • Iranian Persian: رَسْتِه (raste) — group
  • Iranian Persian: کَتِگوری (kategori) — group
  • Iranian Persian: طَبَقِه (tabaġe) — group
  • Iranian Persian: دَسْتِه (daste) — group
  • Iranian Persian: مَقولِه (maġule) — group
  • Iranian Persian: گُروه (goruh) — group
  • Iranian Persian: نُوع (now') — group
  • Polish: kategoria — group
  • Portuguese: categoria — group
  • Quechua: katiguriya — group
  • Romanian: categorie — group
  • Russian: катего́рия (kategórija) — group
  • Scottish Gaelic: gnè — group
  • Scottish Gaelic: seòrsa — group
  • Serbo-Croatian: катего̀рија — group
  • Serbo-Croatian: kategòrija — group
  • Sicilian: catigurìa — group
  • Sicilian: catiggurìa — group
  • Slovak: kategória — group
  • Slovene: kategorija — group
  • Spanish: categoría — group
  • Swedish: kategori — group
  • Tajik: гурӯҳ (gurüh) — group
  • Tajik: категория (kategoriya) — group
  • Tajik: рада (rada) — group
  • Tatar: төркем (törkem) — group
  • Thai: ประเภท (bprà-pêet) — group
  • Thai: หมวดหมู่ (mùuat-mùu) — group
  • Turkish: kategori — group
  • Ottoman Turkish: صنف (sınf, sınıf) — group
  • Turkmen: kategoriýa — group
  • Ukrainian: катего́рія (katehórija) — group
  • Urdu: زُمْرَہ (zumra) — group
  • Uyghur: تۈر (tür) — group
  • Uyghur: كاتېگورىيە (katëgoriye) — group
  • Uzbek: turkum — group
  • Uzbek: kategoriya — group
  • Vietnamese: thể loại — group
  • Yakut: категория (kategoriya) — group
  • Yiddish: קאַטעגאָריע (kategorye) — group
  • Yoruba: ìsọ̀rí — group
  • Zazaki: kategoriy — group
  • Zazaki: réz — group
  • Zazaki: kategoriye — group
  • Afrikaans: kategorie — collection in math
  • Arabic: فِئَة (fiʔa) — collection in math
  • Armenian: կատեգորիա (kategoria) — collection in math
  • Catalan: categoria — collection in math
  • Chinese Mandarin: 範疇 /范畴 (fànchóu) — collection in math
  • Czech: kategorie — collection in math
  • Danish: kategori — collection in math
  • Dutch: categorie — collection in math
  • Finnish: kategoria — collection in math
  • French: catégorie — collection in math
  • Galician: categoría — collection in math
  • German: Kategorie — collection in math
  • Greek: κατηγορία (katigoría) — collection in math
  • Hebrew: מַחְלָקָה f קָטֵגוֹרְיָה (makhlaká) — collection in math
  • Icelandic: ríki — collection in math
  • Irish: catagóir — collection in math
  • Irish: earnáil — collection in math
  • Italian: categoria — collection in math
  • Japanese: 圏 (ken) — collection in math
  • Korean: 범주 (beomju) — collection in math
  • Central Kurdish: ھاوپۆل (hawpol) — collection in math
  • Macedonian: категорија (kategorija) — collection in math
  • Macedonian: видоред (vidored) — collection in math
  • Polish: kategoria — collection in math
  • Portuguese: categoria — collection in math
  • Romanian: categorie — collection in math
  • Russian: катего́рия (kategórija) — collection in math
  • Sicilian: catigurìa — collection in math
  • Spanish: categoría — collection in math
  • Swedish: kategori — collection in math
  • Ukrainian: катего́рія (katehórija) — collection in math
  • Zazaki: kategori — collection in math
Real reading context

category in complete knowledge articles