Standard Lemma guide

codomain

noun · 2 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: /ˌkoʊ.doʊˈmeɪn/
  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The target set into which a function is formally defined to map elements of its domain; the set denoted Y in the notation f : X → Y.

Definition source: English Wiktionary via Wiktextract

Topics: mathematical-analysis, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The target set into which a function is formally defined to map elements of its domain; the set denoted Y in the notation f : X → Y.

The set B.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

Topics: mathematical-analysis, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Latin co-der. English co- Proto-Indo-European *dem- Proto-Indo-European *-s Proto-Indo-European *dṓmder. Proto-Italic *domanos Latin dominus Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ium Latin dominiumder. Old French demainebor. Middle English demayne English domain English codomain From co- + domain.

Across languages

Translations

11 source translations are retained for this English entry.

  • Czech: obor hodnot — target set of a function
  • Danish: dispositionsmængde — target set of a function
  • German: Zielmenge — target set of a function
  • Icelandic: aðmengi — target set of a function
  • Icelandic: ítak — target set of a function
  • Icelandic: bakmengi — target set of a function
  • Japanese: 終域 (shūiki) — target set of a function
  • Polish: przeciwdziedzina — target set of a function
  • Portuguese: contradomínio — target set of a function
  • Russian: область значений — target set of a function
  • Swedish: målmängd — target set of a function