Domain Meaning

/ˌdəʊˈmeɪ̯n/
B1

Definition, CEFR level B1, pronunciation, examples, and quiz.

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nounA geographic area owned or controlled by a single person or organization.

nounA field or sphere of activity, influence or expertise.

I can't figure out how to register a new domain name.
What is your field of study, your domain of inquiry, your major interest?
Synonyms:
Antonyms:
None
CEFR Practice Quiz
The website's new ____ name was very easy to remember.
CEFR Practice Quiz (Alternate)
I can't figure out how to register a new ____ name.

Etymology tree Proto-Indo-European *dem- Proto-Indo-European *-s Proto-Indo-European *dṓmder. Proto-Italic *domanos Latin dominus Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ium Latin dominiumder. Old French demainebor. Middle English demayne 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 demesne and dominium, and closely related to dominion and domino. See also dame, and compare demain, danger, dungeon.

"Bears and other ferocious beasts resented man's intrusion into their domain; so, too, did the Blackfoot Indians and other tribes, whose savage hostility was a constant menace to the lives of the toiling engineers." — 1954 February, Trevor Holloway, “Canada's Transcontinental Routes”, in Railway Magazine, page 128:
"Farmers account for just 1.5% of the British population, but the size of their domain – 71% of the country’s surface area is classified as farmland – has given them power over the public imagination." — 2020 February 25, Christopher de Bellaigue, “The end of farming?”, in The Guardian:
"A blinded hermit in oblivion, disgraced Like Odysseus lost in Poseidon's endless domain In a realm devoid ov solace, I roam" — 2022, “Ov My Herculean Exile”, in Nergal, Tomasz Wróblewski (lyrics), Behemoth (music), Opvs Contra Natvram, performed by Behemoth:
"When examining studies that assess independent living and social skills—key areas of focus in adulthood for individuals with ASD—it is observed that most research evaluates only one of these domains, either activities of daily living or social functioning." — 2025 August 13, Müjdat Erarkadaş, Kübra Özmeral Erarkadaş, Şahika Gülen Şişmanlar, “Autism Spectrum Disorder Beyond Childhood: A Comprehensive Assessment of Activities of Daily Living and Social Functioning in Turkish Adults.”, in Journal of Autism and Developmental Disorders, →DOI:
"Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories." — 2012 January 26, Michael Riordan, “Tackling Infinity”, in American Scientist, volume 100, number 1, archived from the original on 30 Apr 2013, page 86:

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CEFR Practice Quiz
The website's new ____ name was very easy to remember.
CEFR Practice Quiz (Alternate)
I can't figure out how to register a new ____ name.

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