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Definition of subgroup

subgroup

/ˈsʌb.ɡruːp/
sub · group
Plural:subgroups
•
Past Simple:subgrouped
•
Past Participle:subgrouped
•
Present Participle:subgrouping
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subgroup Lexical Profile

subgroup Game Scores & Validity

• noun

1

A subordinate or smaller group within a larger group, category, or population.

Example

"The researchers analyzed how the treatment affected a specific subgroup of older patients."

2

A subset of a mathematical group that itself satisfies the axioms of a group under the same binary operation.

Example

"In abstract algebra, the set of even integers under addition forms a subgroup of the set of all integers."

Synonyms
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Antonyms
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• verb

1

To divide into smaller, subordinate groups, or to form a subordinate group within a larger whole.

Example

"The linguists decided to subgroup the related dialects based on shared phonological innovations."

Synonyms
View all synonyms for subgroup
Antonyms
View all antonyms for subgroup

• Nearby Words

subfreezing
subgenre
subgoal
subgroup
subhead
subheading
subhuman

Cite this Entry

Wordmom. (2026). Definition of Subgroup. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/subgroup
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