| cahoots(support, help, aid, service, assistance) |
| campaign |
| campaigning |
| candidacy |
| coaction(support, help, aid, service, assistance) |
| coadjuvancy(support, help, aid, service, assistance) |
| coalition(support, help, aid, service, harmony) |
| collaboration(support, help, aid, service, harmony) |
| combination(support, help, aid, service, assistance) |
| combined effort(expression, support, help, aid, service) |
| communion(support, help, aid, service, assistance) |
| company(support, help, aid, service, assistance) |
| concert(support, help, aid, service, assistance) |
| concord |
| concurrence(support, help, aid, service, assistance) |
| confederacy(support, help, aid, service, harmony) |
| confederation(support, help, aid, service, harmony) |
| confunction(support, help, aid, service, assistance) |
| conspiracy(support, help, aid, service, assistance) |
| contumacy(noun, passion, hatred, zeal, keenness) |