| concern(noun, business, company, body, group) |
| concourse(noun, set, meet, press, group) |
| confederacy(noun, organization, company, group, society) |
| conference(noun, meet, body, group, mass) |
| conflux(noun, set, meet, press, group) |
| congeries(noun, set, meet, press, group) |
| conglomerate(noun, organization, business, company, set) |
| congress(noun, organization, company, society, association) |
| consortium(noun, organization, body, group, society) |
| conspiracy(group, party, section) |
| cooperative(noun, organization, business, company, body) |
| corner(circle, loop, hoop) |
| corporate body(expression, business, company, firm) |
| cosmonaut |
| covetous |
| crew chief |
| cruise(trip, voyage, excursion) |
| crusade(trip, voyage, excursion) |
| crush(noun, set, meet, press, group) |
| delegation(crowd, throng, horde) |