共同

common / joint / jointly / together / collaborative

common / general / to share / together / total / altogether / abbr. for 共產黨|共产党[Gong4 chan3 dang3], Communist party

like / same / similar / together / alike / with

see 衚衕|胡同[hu2 tong4]

common ground

community

mutual fund

Kyōdō, Japanese news agency

collaborative filtering

common program / formal program of the communist party after 1949, that served as interim national plan

Common Gateway Interface / CGI

Kyōdō, Japanese news agency

East African Community

common interest / mutual benefit

to work together / to collaborate