Collectivity \Col`lec*tiv"i*ty\, n. 1. Quality or state of being collective. 2. The collective sum. aggregate, or mass of anything; specif., the people as a body; the state. The proposition to give work by the collectivity is supposed to be in contravention of the sacred principle of monopolistic competition. --W. D. Howells. 3. (Polit. Econ.) Collectivism.