Standard Lemma guide

identity

noun · 11 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: /aɪˈdɛntɪti/
  • General-American: /aɪˈdɛn(t)ɪti/
  • General-American: /aɪˈdɛn(t)əti/
  • General-American: [aɪˈdɛnɪɾi]
  • General-American: [aɪˈdɛnəɾi]
  • Australian: /ɑɪˈdentəti/
  • Australia: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AY0 D EH1 N T IH0 T IY2 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Sameness, identicalness; the quality or fact of (several specified things) being the same.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: identicalness, identicality, sameness, identity, sameliness, uniformity

Antonyms: unidenticality, nonidentity, difference, differentiation, differentness, distinction, distinguishedness, diversity

2

noun

Meaning 2

The difference or character that marks off an individual or collective from the rest of the same kind; selfhood; the sense of who something or someone or oneself is, or the recurring characteristics that enable the recognition of such an individual or group by others or themselves.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Examples

  • I've been through so many changes, I have no sense of identity.
  • This nation has a strong identity.

Meaning relationships

Synonyms: individuality, beinghood, identity, ipseity, personality, personhood, personness, selfdom, selfhood, selfness, selfship

Antonyms: none provided

3

noun

Meaning 3

A name or persona—a mask or appearance one presents to the world—by which one is known.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Examples

  • This criminal has taken on several identities.
  • In this show, the competitor's identity will remain secret until after the vote.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An equation which always holds true regardless of the choice of input variables.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: mathematics, sciences

Examples

  • The equation (x+y)(x−y) = x2−y2 is an algebraic identity. It is true regardless of the values of x and y.

Meaning relationships

Synonyms: identity function

Antonyms: none provided

5

noun

Meaning 5

Any function which maps all elements of its domain to themselves.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: algebra, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

An element of an algebraic structure which, when applied to another element under an operation in that structure, yields this second element.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: algebra, mathematics, sciences

Examples

  • Zero is the identity for the addition of real numbers.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A well-known or famous person.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, New-Zealand, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: celebrity, personality

Antonyms: none provided

8

noun

Meaning 8

the distinct personality of an individual regarded as a persisting entity

Definition source: Princeton WordNet 3.0

Examples

  • you can lose your identity when you join the army

Meaning relationships

Synonyms: personal identity, individuality

Antonyms: none provided

Broader terms: personality

Narrower terms: gender identity, identification, personhood

9

noun

Meaning 9

exact sameness

Definition source: Princeton WordNet 3.0

Examples

  • they shared an identity of interests

Meaning relationships

Synonyms: identicalness, indistinguishability

Antonyms: none provided

Broader terms: sameness

Narrower terms: oneness, unity, selfsameness

10

noun

Meaning 10

the individual characteristics by which a thing or person is recognized or known

Definition source: Princeton WordNet 3.0

Examples

  • geneticists only recently discovered the identity of the gene that causes it
  • it was too dark to determine his identity
  • she guessed the identity of his lover

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: recognition, identification

11

noun

Meaning 11

an operator that leaves unchanged the element on which it operates

Definition source: Princeton WordNet 3.0

Examples

  • the identity under numerical multiplication is 1

Meaning relationships

Synonyms: identity element, identity operator

Antonyms: none provided

Broader terms: operator

History

Etymology

From Middle English ydemptite, from Middle French identité and its etymon Late Latin idemptitās, identitās, from idem (“the same”) + -tās (suffix forming abstract nouns) as a calque of Ancient Greek ταὐτότης (tautótēs, “sameness”).

Across languages

Translations

166 source translations are retained for this English entry.

  • Afrikaans: identiteit — the sameness some individuals share to make up the same kind or universal
  • Albanian: identitetit — the sameness some individuals share to make up the same kind or universal
  • Arabic: مُطَابَقَة (muṭābaqa) — the sameness some individuals share to make up the same kind or universal
  • Armenian: ինքնություն (inkʻnutʻyun) — the sameness some individuals share to make up the same kind or universal
  • Armenian: նույնականություն (nuynakanutʻyun) — the sameness some individuals share to make up the same kind or universal
  • Bashkir: үҙаң (üźañ) — the sameness some individuals share to make up the same kind or universal
  • Belarusian: тоеса́масць (tojesámascʹ) — the sameness some individuals share to make up the same kind or universal
  • Belarusian: тожса́масць (tožsámascʹ) — the sameness some individuals share to make up the same kind or universal
  • Belarusian: то́еснасць (tójesnascʹ) — the sameness some individuals share to make up the same kind or universal
  • Belarusian: ідэнты́чнасць (identýčnascʹ) — the sameness some individuals share to make up the same kind or universal
  • Bulgarian: една́квост (ednákvost) — the sameness some individuals share to make up the same kind or universal
  • Bulgarian: тъжде́ственост (tǎždéstvenost) — the sameness some individuals share to make up the same kind or universal
  • Bulgarian: иденти́чност (identíčnost) — the sameness some individuals share to make up the same kind or universal
  • Catalan: identitat — the sameness some individuals share to make up the same kind or universal
  • Chinese Mandarin: 個性 /个性 (gèxìng) — the sameness some individuals share to make up the same kind or universal
  • Chinese Mandarin: 身分 (shēnfen) — the sameness some individuals share to make up the same kind or universal
  • Chinese Mandarin: 身份 (shēnfen) — the sameness some individuals share to make up the same kind or universal
  • Czech: totožnost — the sameness some individuals share to make up the same kind or universal
  • Czech: identita — the sameness some individuals share to make up the same kind or universal
  • Danish: identitet — the sameness some individuals share to make up the same kind or universal
  • Dutch: identiteit — the sameness some individuals share to make up the same kind or universal
  • Finnish: yhtäläisyys — the sameness some individuals share to make up the same kind or universal
  • Finnish: samuus — the sameness some individuals share to make up the same kind or universal
  • Finnish: identtisyys — the sameness some individuals share to make up the same kind or universal
  • Finnish: identiteetti — the sameness some individuals share to make up the same kind or universal
  • French: identité — the sameness some individuals share to make up the same kind or universal
  • Galician: identidade — the sameness some individuals share to make up the same kind or universal
  • Georgian: იდენტურობა (idenṭuroba) — the sameness some individuals share to make up the same kind or universal
  • German: Identität — the sameness some individuals share to make up the same kind or universal
  • German: Gleichheit — the sameness some individuals share to make up the same kind or universal
  • German: Übereinstimmung — the sameness some individuals share to make up the same kind or universal
  • German: Nämlichkeit — the sameness some individuals share to make up the same kind or universal
  • Greek: ταυτότητα (taftótita) — the sameness some individuals share to make up the same kind or universal
  • Hebrew: זֶהוּת (zehút) — the sameness some individuals share to make up the same kind or universal
  • Hungarian: azonosság — the sameness some individuals share to make up the same kind or universal
  • Irish: ionannas — the sameness some individuals share to make up the same kind or universal
  • Italian: identità — the sameness some individuals share to make up the same kind or universal
  • Japanese: 同一 (dōitsu) — the sameness some individuals share to make up the same kind or universal
  • Kazakh: даралық (daralyq) — the sameness some individuals share to make up the same kind or universal
  • Korean: 동일(同一)함 (dong'ilham) — the sameness some individuals share to make up the same kind or universal
  • Korean: 동일성 (dong'ilseong) — the sameness some individuals share to make up the same kind or universal
  • Latvian: tāpatība — the sameness some individuals share to make up the same kind or universal
  • Macedonian: идентите́т (identitét) — the sameness some individuals share to make up the same kind or universal
  • Maltese: identità — the sameness some individuals share to make up the same kind or universal
  • Māori: tuakiri — the sameness some individuals share to make up the same kind or universal
  • Norwegian Bokmål: identitet — the sameness some individuals share to make up the same kind or universal
  • Norwegian Nynorsk: identitet — the sameness some individuals share to make up the same kind or universal
  • Iranian Persian: هُوِیَت (hoviyat) — the sameness some individuals share to make up the same kind or universal
  • Polish: tożsamość — the sameness some individuals share to make up the same kind or universal
  • Portuguese: identidade — the sameness some individuals share to make up the same kind or universal
  • Punjabi: ਪਛਾਣ (pachāṇ) — the sameness some individuals share to make up the same kind or universal
  • Punjabi: پَچھاݨ (pachāṇ) — the sameness some individuals share to make up the same kind or universal
  • Romanian: identitate — the sameness some individuals share to make up the same kind or universal
  • Russian: тожде́ственность (toždéstvennostʹ) — the sameness some individuals share to make up the same kind or universal
  • Russian: иденти́чность (idɛntíčnostʹ) — the sameness some individuals share to make up the same kind or universal
  • Scottish Gaelic: ionannachd — the sameness some individuals share to make up the same kind or universal
  • Serbo-Croatian: идентѝте̄т — the sameness some individuals share to make up the same kind or universal
  • Serbo-Croatian: identìtēt — the sameness some individuals share to make up the same kind or universal
  • Slovak: totožnosť — the sameness some individuals share to make up the same kind or universal
  • Slovak: identita — the sameness some individuals share to make up the same kind or universal
  • Slovene: identiteta — the sameness some individuals share to make up the same kind or universal
  • Spanish: identidad — the sameness some individuals share to make up the same kind or universal
  • Swedish: identitet — the sameness some individuals share to make up the same kind or universal
  • Tagalog: kasiyangaan — the sameness some individuals share to make up the same kind or universal
  • Tagalog: pagkakakilanlan — the sameness some individuals share to make up the same kind or universal
  • Thai: เอกลักษณ์ (èek-gà-lák) — the sameness some individuals share to make up the same kind or universal
  • Ukrainian: іденти́чність (identýčnistʹ) — the sameness some individuals share to make up the same kind or universal
  • Ukrainian: тото́жність (totóžnistʹ) — the sameness some individuals share to make up the same kind or universal
  • Urdu: پَہْچان (pahcān) — the sameness some individuals share to make up the same kind or universal
  • Vietnamese: tính đồng nhất — the sameness some individuals share to make up the same kind or universal
  • Afrikaans: persoonlikheid — the difference or character that marks off an individual or group from the rest
  • Arabic: هُوِيَّة (huwiyya) — the difference or character that marks off an individual or group from the rest
  • Arabic: هويَّة (hawiye) — the difference or character that marks off an individual or group from the rest
  • Azerbaijani: kimlik — the difference or character that marks off an individual or group from the rest
  • Bashkir: үҙаң (üźañ) — the difference or character that marks off an individual or group from the rest
  • Basque: nortasuna — the difference or character that marks off an individual or group from the rest
  • Bulgarian: индивидуа́лност (individuálnost) — the difference or character that marks off an individual or group from the rest
  • Chinese Mandarin: 同一性 (tóngyīxìng) — the difference or character that marks off an individual or group from the rest
  • Chinese Mandarin: 個性 /个性 (gèxìng) — the difference or character that marks off an individual or group from the rest
  • Chinese Mandarin: 特性 (tèxìng) — the difference or character that marks off an individual or group from the rest
  • Chinese Mandarin: 身分 (shēnfen) — the difference or character that marks off an individual or group from the rest
  • Chinese Mandarin: 身份 (shēnfèn) — the difference or character that marks off an individual or group from the rest
  • Czech: identita — the difference or character that marks off an individual or group from the rest
  • Czech: totožnost — the difference or character that marks off an individual or group from the rest
  • Danish: identitet — the difference or character that marks off an individual or group from the rest
  • Dutch: persoonlijkheid — the difference or character that marks off an individual or group from the rest
  • Finnish: yksilöys — the difference or character that marks off an individual or group from the rest
  • Finnish: yksilöllisyys — the difference or character that marks off an individual or group from the rest
  • Finnish: identiteetti — the difference or character that marks off an individual or group from the rest
  • Finnish: olemus — the difference or character that marks off an individual or group from the rest
  • French: identité — the difference or character that marks off an individual or group from the rest
  • Galician: identidade — the difference or character that marks off an individual or group from the rest
  • Georgian: ვინაობა (vinaoba) — the difference or character that marks off an individual or group from the rest
  • German: Identität — the difference or character that marks off an individual or group from the rest
  • Greek: ταυτότητα (taftótita) — the difference or character that marks off an individual or group from the rest
  • Hebrew: זֶהוּת (zehút) — the difference or character that marks off an individual or group from the rest
  • Hungarian: személyazonosság — the difference or character that marks off an individual or group from the rest
  • Hungarian: kilét — the difference or character that marks off an individual or group from the rest
  • Hungarian: önazonosság — the difference or character that marks off an individual or group from the rest
  • Hungarian: hovatartozás — the difference or character that marks off an individual or group from the rest
  • Hungarian: mibenlét — the difference or character that marks off an individual or group from the rest
  • Japanese: 身元 (mimoto) — the difference or character that marks off an individual or group from the rest
  • Japanese: 同一性 (dōitsusei) — the difference or character that marks off an individual or group from the rest
  • Japanese: アイデンティティ (aidentiti) — the difference or character that marks off an individual or group from the rest
  • Japanese: アイデンティティー (aitentitī) — the difference or character that marks off an individual or group from the rest
  • Japanese: 主体性 (shutaisei) — the difference or character that marks off an individual or group from the rest
  • Kazakh: сипаты (sipaty) — the difference or character that marks off an individual or group from the rest
  • Kazakh: бейнесі (beinesı) — the difference or character that marks off an individual or group from the rest
  • Kazakh: реті (retı) — the difference or character that marks off an individual or group from the rest
  • Korean: 아이덴티티 (aidentiti) — the difference or character that marks off an individual or group from the rest
  • Korean: 정체성 (jeongcheseong) — the difference or character that marks off an individual or group from the rest
  • Latvian: identitāte — the difference or character that marks off an individual or group from the rest
  • Maltese: identità — the difference or character that marks off an individual or group from the rest
  • Māori: tuakiri — the difference or character that marks off an individual or group from the rest
  • Norwegian Bokmål: identitet — the difference or character that marks off an individual or group from the rest
  • Norwegian Nynorsk: identitet — the difference or character that marks off an individual or group from the rest
  • Iranian Persian: هُوِیَت (hoviyat) — the difference or character that marks off an individual or group from the rest
  • Polish: tożsamość — the difference or character that marks off an individual or group from the rest
  • Portuguese: identidade — the difference or character that marks off an individual or group from the rest
  • Russian: иденти́чность (idɛntíčnostʹ) — the difference or character that marks off an individual or group from the rest
  • Russian: индивидуа́льность (individuálʹnostʹ) — the difference or character that marks off an individual or group from the rest
  • Russian: ли́чность (líčnostʹ) — the difference or character that marks off an individual or group from the rest
  • Scottish Gaelic: dearbh-aithne — the difference or character that marks off an individual or group from the rest
  • Spanish: identidad — the difference or character that marks off an individual or group from the rest
  • Swedish: identitet — the difference or character that marks off an individual or group from the rest
  • Tagalog: kasiyangaan — the difference or character that marks off an individual or group from the rest
  • Tagalog: pagkakakilanlan — the difference or character that marks off an individual or group from the rest
  • Thai: เอกลักษณ์ (èek-gà-lák) — the difference or character that marks off an individual or group from the rest
  • Turkish: hüviyyet — the difference or character that marks off an individual or group from the rest
  • Ukrainian: особи́стість (osobýstistʹ) — the difference or character that marks off an individual or group from the rest
  • Ukrainian: індивідуа́льність (indyviduálʹnistʹ) — the difference or character that marks off an individual or group from the rest
  • Vietnamese: cá tính — the difference or character that marks off an individual or group from the rest
  • Vietnamese: đặc tính — the difference or character that marks off an individual or group from the rest
  • Afrikaans: identiteit — name or persona
  • Arabic: هُوِيَّة (huwiyya) — name or persona
  • Arabic: هويَّة (hawiye) — name or persona
  • Bulgarian: самоли́чност (samolíčnost) — name or persona
  • Chinese Mandarin: 身分 (shēnfen) — name or persona
  • Chinese Mandarin: 身份 (shēnfen) — name or persona
  • Czech: totožnost — name or persona
  • Czech: identita — name or persona
  • Danish: identitet — name or persona
  • Dutch: identiteit — name or persona
  • Finnish: henkilöllisyys — name or persona
  • French: identité — name or persona
  • Galician: identidade — name or persona
  • German: Identität — name or persona
  • Greek: ταυτότητα (taftótita) — name or persona
  • Hebrew: פַּרְצוּף (partsúf) — name or persona
  • Hungarian: személyiség — name or persona
  • Hungarian: identitás — name or persona
  • Japanese: 氏名 (shimei) — name or persona
  • Japanese: 素性 (sujō) — name or persona
  • Korean: 정체 (jeongche) — name or persona
  • Norwegian Bokmål: identitet — name or persona
  • Norwegian Nynorsk: identitet — name or persona
  • Polish: tożsamość — name or persona
  • Portuguese: identidade — name or persona
  • Romanian: identitate — name or persona
  • Russian: ли́чность (líčnostʹ) — name or persona
  • Russian: ли́чные да́нные (líčnyje dánnyje) — name or persona
  • Albanian: barazim — a mathematical equation that holds true irrespective of input elements.
  • Bulgarian: тъждество́ (tǎždestvó) — a mathematical equation that holds true irrespective of input elements.
  • Hungarian: azonosság — a mathematical equation that holds true irrespective of input elements.
  • Māori: tūmau — a mathematical equation that holds true irrespective of input elements.
  • Spanish: identidad — a mathematical equation that holds true irrespective of input elements.
Real reading context

identity in complete knowledge articles