Standard Lemma guide

outgroup

noun · verb · 3 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

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1

noun

Meaning 1

The group of people who do not belong to one's own social group.

Definition source: English Wiktionary via Wiktextract

Topics: human-sciences, sciences, social-science, sociology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

In cladistics, all the taxa included in a study that do not belong to the ingroup that is of immediate interest.

Definition source: English Wiktionary via Wiktextract

Qualifier: systematics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To form an outgroup.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *úd Proto-Germanic *ūt Proto-Germanic *ūt- Old English ūt- Middle English ut- English out- Italian gruppobor. French groupebor. Italian gruppobor. English group English outgroup From out- + group.

Across languages

Translations

3 source translations are retained for this English entry.

  • Polish: grupa zewnętrzna — Translations
  • Spanish: exogrupo — Translations
  • Spanish: ectogrupo — Translations