a Formed by gathering or collecting; gathered into a mass, sum, or body; congregated or aggregated; as, the collective body of a nation.
a (grammar): Expressing a collection or aggregate of individuals, by a singular form; as, a collective name or noun, like assembly, army, jury, etc.
a Having plurality of origin or authority; as, in diplomacy, a note signed by the representatives of several governments is called a collective note.