| congruity(noun, agreement, union, accord, harmony) |
| conjunction(agreement, harmony) |
| consensus(noun, understanding, agreement, accord, harmony) |
| consilience |
| consistency(noun, agreement, union, accord, harmony) |
| consolidate(rally, merge, integrate, amalgamate, collaborate) |
| consort(verb, set, check, agree, allow) |
| conspiracy(support, help, aid, service, assistance) |
| construct(verb, place, determine, promote, plan) |
| contribute(verb, help, play, agree, aid) |
| coordinate(verb, help, play, agree, aid) |
| coproduce(verb, meet, unite, combine, mix) |
| correspondence(noun, agreement, union, accord, harmony) |
| cut out(verb, phrasal verb, plan) |
| debate(verb, settle, agree, arrange, handle) |
| decide(verb, place, end, fix, clear) |
| determine(verb, place, fix, clear, promote) |
| diapason(noun, piece, arrangement, harmony, air) |
| direct(verb, control, place, run, maintain) |
| discuss(verb, settle, agree, arrange, handle) |