Added 9 October 2026
domain
/ˌdəʊˈmeɪ̯n/ noun
Latin root: dominium Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about domain at Wordnik → Where our words come from →
-
A particular environment or walk of life.
his social sphere is limited
-
Territory over which rule or control is exercised.
his domain extended into Europe
- (mathematics) the set of values of the independent variable for which a function is defined.
Origin
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 demesne and dominium, and closely related to dominion and domino. See also dame, and compare demain, danger, dungeon.
From Wiktionary, via Kaikki.org (CC BY-SA)