domain.
domain
Meaning & usage
domain a geographic area owned or controlled by a single person or organization.
domain DNS domain name
domain the set on which a function is defined
domain ring with no zero divisors
domain highest-level grouping of organisms
domain folded section of a protein
Where this word comes from
From English domain, from Middle English demayne, demain (“rule”), from Old French demeine, demaine, demeigne, domaine (“power”), (French domaine), from Latin dominium (“property, right of ownership”), from dominus (“master, proprietor, owner”). Doublet of dame.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.