(n) communal society
community
(n) apartment house
residential complex
(n) joint investment
(n) joint signatures
(n) common faucet
(n) crime committed together by two or more people (in which each is known as a co-principal)
(n) community life
cohabitation
(n) joint declaration
(n) joint responsibility
solidarity
(n) joint declaration
(n) common front
united front
(n) community evacuation
(n) international settlement
(n) jointly held concession in China (e.g. Shanghai International Settlement)
(n) cooperative
partnership
(n) joint investigation
(n) joint inheritance
(n) joint communications
(n) party line (telephone line shared by multiple subscribers)
(n) collective farm
(n) joint invention
(n) comfort station
(n) community chest
(n) public cemetery
(n) conspiracy
(n) joint defense
joint defence
(n) complicity (in a crime)
collusion
(n) cooperative sales company
(n) (comp) complex conjugate transpose (of a matrix)
(n) covalent bond