noun
Common
domain
doh-MAYN
Domain (noun) means a field or area of activity, knowledge, or control. Example: “Marketing strategy falls squarely within her domain.”
noun
1
A field or area of activity, knowledge, or control.
"Marketing strategy falls squarely within her domain."
"Space exploration is no longer solely the domain of governments."
"Medicine is a domain where careful training matters enormously."
2
A territory owned or ruled by one person, group, or organization.
"The castle once stood at the heart of the duke's domain."
"The lion defended its domain against any rival that wandered near."
"The king's domain stretched from the mountains to the sea."
3
A website address (or the underlying registered name) used to identify it on the internet.
"We registered the domain last month before launching the site."
"You can buy a domain name for your blog from many companies."
"Her email address uses her own domain instead of a free service."
How to use domain
Learner’s notesIn plain EnglishAn area someone controls or specializes in — or, online, a website's registered name.
Easily confused with
Common pairings
area of expertise
domain name
public domain
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Word forms
- Plural
- domains
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Marketing strategy falls squarely within her _____.
Etymology
From Old French demeine, "power, rule," ultimately from Latin dominium, "ownership" — related to "dominion" and "dame."
Synonyms
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Related words
Rhymes for domain
See all rhymes for domain →Frequently asked questions
What does “domain” mean?
The word “domain” means a field or area of activity, knowledge, or control. In plain terms, an area someone controls or specializes in — or, online, a website's registered name.
How do you pronounce “domain”?
“Domain” is pronounced doh-MAYN (/ˌdoʊ̯ˈmeɪ̯n/ in IPA).
How do you use “domain” in a sentence?
Here is “domain” used in a sentence: “Marketing strategy falls squarely within her domain.”
What is another word for “domain”?
Words with a similar meaning to “domain” include domain of definition.
What is the opposite of “domain”?
The opposite of “domain” — its antonyms — are range and codomain.
What part of speech is “domain”?
“Domain” is a noun.
Where does the word “domain” come from?
The word “domain” comes from Latin. From Old French demeine, "power, rule," ultimately from Latin dominium, "ownership" — related to "dominion" and "dame.".
Is “domain” a common word?
“Domain” is a fairly common word in modern English.
What is the difference between 'domain' and 'field'?
Both 'domain' and 'field' can mean an area of knowledge or activity, and they are often interchangeable, as in 'the domain of physics' or 'the field of physics.' 'Domain' can also carry a sense of control or ownership over that area, which 'field' does not.
What is the difference between 'domain' and 'realm'?
A 'realm' traditionally means a kingdom or territory ruled by a monarch, while a 'domain' can mean either a ruled territory or, more broadly, an area of activity, knowledge, or control. In modern figurative use both can describe a sphere of interest, such as 'the realm of ideas' or 'the domain of science.'
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