constar - to be clear, to be stated, to be composed of

contactar - to contact

contraer - to contract, to infect, to shrink

contravenir - to contravene

converger - to converge

convergir - to converge

convivir - to live together, to coexist

cooperar - to cooperate

coordinar - to coordinate

copular - to copulate

coquetear - to flirt with