The initial idioms of the letter C

commiserative	Commissaire Maigret
commissar	commissariat
commissary	commission
Commission on Human Rights	Commission on Narcotic Drugs
Commission on the Status of Women	commission plan
commissionaire	commissioned
commissioned military officer	commissioned naval officer
commissioned officer	commissioner
commissioning	commissure
commit	commit suicide
commitment	committal
committal service	committal to memory
committal to writing	committed
committedness	committee
Committee for State Security	committee meeting