Standard Lemma guide

define

noun · verb · 13 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.

  • /dɪˈfaɪn/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -aɪn
  • CMU ARPABET: D IH0 F AY1 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A kind of macro in source code that replaces one text string with another wherever it occurs.

Definition source: English Wiktionary via Wiktextract

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

2

verb

Meaning 2

To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly.

Definition source: English Wiktionary via Wiktextract

Examples

  • the defining power of an optical instrument

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To settle, decide (an argument etc.).

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To express the essential nature of something.

Definition source: English Wiktionary via Wiktextract

Examples

  • I define myself as a techno-anarchist.
  • Your past mistakes do not define who you are.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To state the meaning of a word, phrase, sign, or symbol.

Definition source: English Wiktionary via Wiktextract

Examples

  • The textbook defined speed as velocity divided by time.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

To describe, explain, or make definite and clear; used to request the listener or other person to elaborate or explain more clearly his or her intended meaning of a word or expression.

Definition source: English Wiktionary via Wiktextract

Examples

  • Person 1: Is she good at math? Person 2: Define "good." If you mean if she is faster than the average middle schooler at multiplication, then yes. If you mean if she is able to do multivariable calculus, then no.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

verb

Meaning 7

To demark sharply the outlines or limits of an area or concept.

Definition source: English Wiktionary via Wiktextract

Examples

  • to define the legal boundaries of a property

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

verb

Meaning 8

To establish the referent of a term or notation.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

verb

Meaning 9

decide upon or fix definitely

Definition source: Princeton WordNet 3.0

Examples

  • fix the variables
  • specify the parameters

Meaning relationships

Synonyms: specify, set, determine, fix, limit

Antonyms: none provided

Broader terms: choose, take, select, pick out

Narrower terms: quantify, name, reset, define

10

verb

Meaning 10

give a definition for the meaning of a word

Definition source: Princeton WordNet 3.0

Examples

  • Define `sadness'

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: specify, set, determine, define, fix, limit

Narrower terms: redefine

11

verb

Meaning 11

determine the essential quality of

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: specify, delineate, delimit, delimitate

Antonyms: none provided

Broader terms: be

Narrower terms: determine, redefine

12

verb

Meaning 12

determine the nature of

Definition source: Princeton WordNet 3.0

Examples

  • What defines a good wine?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: characterize, characterise

13

verb

Meaning 13

show the form or outline of

Definition source: Princeton WordNet 3.0

Examples

  • The tree was clearly defined by the light
  • The camera could define the smallest object

Meaning relationships

Synonyms: delineate

Antonyms: none provided

Broader terms: show

History

Etymology

From Middle English definen, from Old French definer, variant of definir, from Latin dēfīniō (“limit, settle, define”), from dē + fīniō (“set a limit, bound, end”).

Across languages

Translations

93 source translations are retained for this English entry.

  • Finnish: define-makro — macro that replaces one text string with another
  • Bulgarian: опреде́лям (opredéljam) — to determine
  • Dutch: bepalen — to determine
  • Dutch: determineren — to determine
  • Esperanto: determini — to determine
  • Finnish: määrittää — to determine
  • Finnish: määritellä — to determine
  • French: déterminer — to determine
  • German: bestimmen — to determine
  • Ancient Greek: ὁρίζω (horízō) — to determine
  • Hebrew: הגדיר (higdír) — to determine
  • Irish: sonraigh — to determine
  • Italian: definire — to determine
  • Italian: determinare — to determine
  • Māori: tautuhi — to determine
  • Persian: تعریفتن — to determine
  • Polish: określać — to determine
  • Polish: określić — to determine
  • Portuguese: definir — to determine
  • Russian: определя́ть (opredeljátʹ) — to determine
  • Russian: определи́ть (opredelítʹ) — to determine
  • Spanish: determinar — to determine
  • Spanish: definir — to determine
  • Spanish: definirse — to determine
  • Ukrainian: визнача́ти (vyznačáty) — to determine
  • Ukrainian: ви́значити (význačyty) — to determine
  • Bulgarian: изразявам (izrazjavam) — express the essential nature of
  • Chinese Mandarin: 界定 (jièdìng) — express the essential nature of
  • Dutch: definiëren — express the essential nature of
  • Dutch: kenschetsen — express the essential nature of
  • Dutch: karakteriseren — express the essential nature of
  • Esperanto: kaŭzi — express the essential nature of
  • Finnish: määritellä — express the essential nature of
  • Finnish: määrittää — express the essential nature of
  • Italian: definire — express the essential nature of
  • Portuguese: definir — express the essential nature of
  • Spanish: aclarar — express the essential nature of
  • Spanish: definir — express the essential nature of
  • Asturian: definir — state meaning of
  • Bulgarian: дефинирам (definiram) — state meaning of
  • Bulgarian: формулирам (formuliram) — state meaning of
  • Catalan: definir — state meaning of
  • Chinese Mandarin: 定义 (dìngyì) — state meaning of
  • Czech: definovat — state meaning of
  • Danish: definere — state meaning of
  • Dutch: definiëren — state meaning of
  • Esperanto: difini — state meaning of
  • Finnish: määritellä — state meaning of
  • French: définir — state meaning of
  • Galician: definir — state meaning of
  • German: definieren — state meaning of
  • Hungarian: definiál — state meaning of
  • Hungarian: meghatároz — state meaning of
  • Italian: definire — state meaning of
  • Japanese: 定義する (teigi suru) — state meaning of
  • Latvian: definēt — state meaning of
  • Norwegian Bokmål: definere — state meaning of
  • Norwegian Nynorsk: definere — state meaning of
  • Norwegian Nynorsk: definera — state meaning of
  • Polish: definiować — state meaning of
  • Polish: zdefiniować — state meaning of
  • Portuguese: definir — state meaning of
  • Romanian: defini — state meaning of
  • Russian: опи́сывать (opísyvatʹ) — state meaning of
  • Russian: описа́ть (opisátʹ) — state meaning of
  • Spanish: definir — state meaning of
  • Swedish: definiera — state meaning of
  • Ukrainian: визнача́ти (vyznačáty) — state meaning of
  • Ukrainian: ви́значити (význačyty) — state meaning of
  • Bulgarian: очертавам (očertavam) — describe, explain, make definite and clear
  • Dutch: beschrijven — describe, explain, make definite and clear
  • Dutch: omschrijven — describe, explain, make definite and clear
  • Finnish: selvittää — describe, explain, make definite and clear
  • Finnish: täsmentää — describe, explain, make definite and clear
  • German: definieren — describe, explain, make definite and clear
  • Italian: definire — describe, explain, make definite and clear
  • Italian: descrivere — describe, explain, make definite and clear
  • Russian: опи́сывать (opísyvatʹ) — describe, explain, make definite and clear
  • Russian: описа́ть (opisátʹ) — describe, explain, make definite and clear
  • Spanish: describir — describe, explain, make definite and clear
  • Spanish: definir — describe, explain, make definite and clear
  • Turkish: tanımlamak — describe, explain, make definite and clear
  • Bulgarian: обозначавам (oboznačavam) — demark the limits of
  • Dutch: bepalen — demark the limits of
  • Dutch: afbakenen — demark the limits of
  • Finnish: määritellä — demark the limits of
  • Finnish: rajata — demark the limits of
  • French: définir — demark the limits of
  • Russian: обознача́ть (oboznačátʹ) — demark the limits of
  • Russian: обозна́чить (oboznáčitʹ) — demark the limits of
  • Spanish: delimitar — demark the limits of
  • Spanish: demarcar — demark the limits of
  • Spanish: definir — demark the limits of
Real reading context

define in complete knowledge articles