Standard Lemma guide

identifier

noun · 8 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.

  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AY0 D EH1 N T AH0 F AY2 ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Someone who identifies; a person who establishes the identity of someone or something.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Something that identifies or uniquely points to something or someone else.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

One who identifies as a particular type or role; one who says and believes that they are a certain thing.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A guidebook that helps determine the specific class of an object (such as a mushroom, herb, fish, bird, drug, or mineral), or its individual identity (such as that of a star).

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A formal name used in source code to refer to a variable, function, procedure, package, etc. or in an operating system to refer to a process, user, group, etc.

Definition source: English Wiktionary via Wiktextract

Qualifier: operating systems

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A code that distinguishes a particular element from all other elements in a document.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A primary key.

Definition source: English Wiktionary via Wiktextract

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

a symbol that establishes the identity of the one bearing it

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: symbol

History

Etymology

Etymology tree English identify Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English identifier From identify + -er.

Across languages

Translations

53 source translations are retained for this English entry.

  • Arabic: مُعَرِّف (muʕarrif) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Belarusian: ідэнтыфіка́тар (identyfikátar) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Bulgarian: идентифика́тор (identifikátor) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Catalan: identificador — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Chinese Mandarin: 識別碼 /识别码 (shìbiémǎ) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Chinese Mandarin: 標誌符 /标志符 (biāoshífú) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Chinese Mandarin: 标识符 (biāozhìfú) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Czech: identifikátor — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Estonian: tuvasti — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Finnish: tunniste — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • French: identificateur — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Georgian: იდენტიფიკატორი (idenṭipiḳaṭori) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Georgian: მაიდენტიფიცირებელი (maidenṭipicirebeli) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • German: Identifikator — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • German: Kennzeichen — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Greek: αναγνωριστικό (anagnoristikó) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Hindi: अभिज्ञापक (abhijñāpak) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Hungarian: azonosító — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Interlingua: identificator — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Italian: identificatore — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Japanese: 識別子 (shikibetsushi) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Kazakh: сәйкестендіргіш (säikestendırgış) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Korean: 식별자 (sikbyeolja) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Latin: identificātor — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Macedonian: идентифика́тор (identifikátor) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Norwegian Bokmål: identifikator — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Persian: شناسال (šenâsâl) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Polish: identyfikator — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Portuguese: identificador — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Russian: идентифика́тор (idɛntifikátor) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Serbo-Croatian: идентифѝка̄тор — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Serbo-Croatian: identifìkātor — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Slovak: identifikátor — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Slovene: identifikator — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Spanish: identificador — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Turkish: tanımlayıcı — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Ukrainian: ідентифіка́тор (identyfikátor) — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Vietnamese: định danh — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Vietnamese: mã nhận dạng — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Vietnamese: ký hiệu nhận dạng — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Vietnamese: kí hiệu nhận dạng — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Vietnamese: mã số — formal name used in source code to refer to a variable, function, procedure, package, etc.
  • Czech: primární klíč — primary key
  • Finnish: pääavain — primary key
  • French: identifiant — primary key
  • Gujarati: ઓળખકર્તા (oḷkhakartā) — primary key
  • Persian: شناسه (šenâse) — primary key
  • Polish: identyfikator — primary key
  • Russian: идентифика́тор (idɛntifikátor) — primary key
  • Russian: перви́чный ключ (pervíčnyj ključ) — primary key
  • Serbo-Croatian: примарни кључ — primary key
  • Serbo-Croatian: primarni ključ — primary key
  • Turkish: birincil anahtar — primary key
Real reading context

identifier in complete knowledge articles