subgroup

noun

sub·​group ˈsəb-ˌgrüp 

1

: a subordinate group whose members usually share some common differential quality

2

: a subset of a mathematical group that is itself a group

Examples of subgroup in a Sentence

Recent Examples on the Web

The mayor says there has also been progress within specific subgroups. —David Garrick, San Diego Union-Tribune, 4 Apr. 2026

And yet, its adversaries have long sorted themselves into mutually hostile subgroups. —Arash Azizi, The Atlantic, 4 Apr. 2026

That research, however, did see positive results in a subgroup of patients who were early in disease and declining rapidly. —Angelica Stabile, FOXNews.com, 3 Apr. 2026

Future research that tracks insurance continuously throughout treatment, standardizes how coverage is categorized and examines specific cancer types and age subgroups in greater depth could clarify the picture further. —Rhonda Winegar, Fortune, 1 Apr. 2026

Word History

First Known Use

1826, in the meaning defined at sense 1

Rhymes for subgroup

• newsgroup
• recoup
• regroup
• workgroup
• coop
• coupe
• croup
• droop
• drupe
• dupe
• group
• hoop

Kids Definition

subgroup

noun

sub·​group ˈsəb-ˌgrüp 

: a group whose members usually share some common quality that makes them different from the other members of a larger group to which they belong