| bureau |
| business(organization, body, group, society, foundation) |
| cabal(set, group, association, party, section) |
| cahoot |
| cahoots(set, association, compound, alliance, partnership) |
| camaraderie(noun, order, society, association, friendship) |
| camarilla(set, association, compound, alliance, partnership) |
| camp(group, party, section) |
| cause(noun, society, association, coalition) |
| cell(group, party, section, side, wing) |
| chain(group, association, grouping) |
| charity(noun, company, association, foundation, creation) |
| circuit(noun, group, association, union, grouping) |
| clinic(organization, business, society, foundation, establishment) |
| coadunation(set, association, compound, alliance, partnership) |
| command |
| committee(order, association, union, government, meeting) |
| communion(noun, order, association, friendship, companionship) |
| compact(noun, group, association, union, grouping) |
| companionability(noun, order, association, friendship, companionship) |