[common ground] {n.} Shared beliefs, interests, or ways of understanding; ways […]

[common touch] {n.} The ability to be a friend of the […]

[company] See: [KEEP COMPANY], [PART COMPANY].

[company man] {n.}, {informal} A worker who always agrees with management […]

[compare notes] {v. phr.}, {informal} To exchange thoughts or ideas about […]

[compliment] See: [RETURN THE COMPLIMENT].

[conclusion] See: [JUMP TO A CONCLUSION].

[condition] See: [IN SHAPE] or [IN CONDITION], [IN THE PINK] or […]

[conference] See: [PRESS CONFERENCE].

[congregate housing] {n.}, {informal} A form of housing for elderly persons […]