| communication(noun, connection, link, tie, accord) |
| communion(noun, support, agreement, connection, association) |
| community(noun, connection, harmony, parallel, likeness) |
| commutation(noun, change, talk, argument, transfer) |
| compact(noun, support, agreement, connection, association) |
| concord(noun, support, agreement, connection, association) |
| concordance(noun, connection, harmony, parallel, likeness) |
| concurrence(noun, support, agreement, connection, association) |
| confederacy(noun, support, agreement, connection, association) |
| confederation(noun, support, agreement, connection, association) |
| congruence(noun, connection, harmony, parallel, likeness) |
| congruity(noun, support, agreement, connection, association) |
| conjunction(noun, connection, tie, support, agreement) |
| connection friendship(noun, expression, connection, link, tie) |
| consanguinity(noun, support, agreement, connection, link) |
| consociation(noun, connection, link, tie, accord) |
| contact(noun, connection, link, tie, accord) |
| conversion(noun, change, talk, argument, transfer) |
| cooperation(noun, support, agreement, connection, association) |
| correlativity |