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Definitions

domain

[doh-meyn] / doʊˈmeɪn /
NOUN
area of expertise, rule
Synonyms
STRONGEST
realm sphere territory
STRONG
authority bailiwick concern demesne department discipline district dominion empire estate field jurisdiction land occupation orbit power province quarter region scope slot specialty terrain turf walk wing
WEAK
home park neck of the woods stomping grounds
Antonyms
STRONG
sky surrender yielding

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“We think of it as systems that are problem-oriented and tend towards the domain specific,” said Suleyman in a November blog post External link.

From Barron's • Apr. 4, 2026

The domain associated with Friday’s hack on Patel was registered on the same day as the DOJ announcement.

From Salon • Mar. 27, 2026

Last week, the US justice department seized several Handala domain names it says were involved in hacking schemes linked to the Islamic Republic of Iran.

From BBC • Mar. 27, 2026

Mr. Ariosto isn’t only interested in space as a domain of great-power competition.

From The Wall Street Journal • Mar. 20, 2026

To Descartes, zero was also implicit in God’s domain, as was the infinite.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife