a distinct and often subordinate group within a group
"The research team identified a subgroup of participants who showed significantly higher stress levels than the rest of the cohort."
(mathematics) a subset (that is not empty) of a mathematical group
"In our abstract algebra class, we proved that every proper subgroup of a finite cyclic group must also be cyclic."
A group within a larger group; a group whose members are some, but not all, of the members of a larger group.
"The marketing team decided to create a special subgroup focused solely on customers who had been loyal for over ten years."
To divide or classify into subgroups
"The researcher decided to subgroup the survey responses by age and location to identify specific trends within each category."