Usually with distinguishing word: a particular section or part of the earth's inhabitants or of (a)… With reference to its interests, beliefs…

In figurative and extended use. An aggregate of people of things united by some common factor. Cf. commonwealth of learning n.

A body of men of the same class, occupation, pursuits, etc.

A group of people who share the same interests, pursuits, or occupation, esp. when distinct from those of the society in which they live.