Definitions for "Collective noun"
Keywords:  noun, singular, flock, herd, things
a noun that is singular in form but refers to a group: e.g.,family, team,jury. It may take either a singular or a plural verb, depending on whether it refers to individual members or to the group as a whole.
a noun that is singular in form but refers to a group of people or things
a descriptor for a group of entities of one kind, such as a herd of cows or a flock of birds