What does "domain" mean?
A geographic area owned or controlled by a single person or organization.
Domain
/dəʊˈmeɪn/ noun
noun ·Common ·Middle school level
Meaning at a glance
- Primary sense: A geographic area owned or controlled by a single person or organization.
- Grammar: domain is listed as noun.
- Nearest alternatives: area, field, sphere, abodes.
- Useful contrasts: codomain, function property, outside control.
- Usage evidence: The most credible hypothesis is the one that limits the number of elements in the domain T.
How to use "domain"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "domain" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "domain" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "domain" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "domain" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "domain" is acting as noun in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "area" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "domain", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 A geographic area owned or controlled by a single person or organization.
"The king ruled his domain harshly."
- 2 the content of a particular field of knowledge wordnet
- 3 A field or sphere of activity, influence or expertise.
"Dealing with complaints isn't really my domain: get in touch with customer services."
- 4 people in general; especially a distinctive group of people with some shared interest wordnet
- 5 A group of related items, topics, or subjects.
"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."
Show 17 more definitions
- 6 (mathematics) the set of values of the independent variable for which a function is defined wordnet
- 7 The set of input (argument) values for which a function is defined.
- 8 territory over which rule or control is exercised wordnet
- 9 The set of input (argument) values for which a function is defined.; The set A; The subset of A consisting of elements a of A such that there exists an element b in B with (a,b) in R. broadly
- 10 a particular environment or walk of life wordnet
- 11 A ring with no zero divisors; that is, in which no product of nonzero elements is zero.
- 12 An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.
- 13 Any DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains. Internet
"2000, BIND 9 Administrator Reference Manual (9.3.2), Internet Software Consortium https://web.archive.org/web/20060619063455/http://www.bind9.net/manual/bind/9.3.2/Bv9ARM.ch01.html Every name in the DNS tree is a domain, even if it is terminal, that is, has no subdomains."
- 14 A collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains. Internet
- 15 A collection of information having to do with a domain, the computers named in the domain, and the network on which the computers named in the domain reside.
- 16 The collection of computers identified by a domain's domain names.
- 17 A small region of a magnetic material with a consistent magnetization direction.
- 18 Such a region used as a data storage element in a bubble memory.
- 19 A form of technical metadata that represent the type of a data item, its characteristics, name, and usage.
"A characteristic of a field. A data domain specifies a data type and applies the minimum and maximum values allowed and other constraints."
- 20 The highest rank in the classification of organisms, above kingdom; in the three-domain system, one of the taxa Bacteria, Archaea, or Eukaryota.
- 21 A folded section of a protein molecule that has a discrete function; the equivalent section of a chromosome.
- 22 An area of more or less uniform mineralization.
Synonyms
All synonymsAntonyms
Example
"The most credible hypothesis is the one that limits the number of elements in the domain T."
Common questions
What is a synonym for "domain"?
Common synonyms include: area, field, sphere, abodes, academic discipline, academic specialty.
How do you use "domain" in a sentence?
The most credible hypothesis is the one that limits the number of elements in the domain T.
How do you pronounce "domain"?
Pronounced /dəʊˈmeɪn/.
Etymology
Etymology tree Proto-Indo-European *dem- Proto-Indo-European *-s Proto-Indo-European *dṓmder. Proto-Italic *domanos Latin dominus Proto-Indo-European *-yós 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.