A communal housing structure built as part of an architectural and social movement in the Soviet Union in the 1920–1930s.

(euphemistic) A feral cat.

plural of communicating vessel

(physics, used mostly in plural) One vessel in a system of containers filled with a homogeneous fluid, connected at the base and subjected to the same atmospheric pressure.

plural of intelligence community

(botany, ecology) a group of plants of different species which coexist in a habitat under certain conditions, and that may be mutually dependent on each other.

plural of plant community

plural of community cat

An autonomous community of Spain. Capital: Madrid.

A crude, authoritarian, forced collectivism and communism where all aspects of life are bureaucratically regimented.