| concatenation(noun, join, combination, connection, combine) |
| conciliation(noun, agreement, combination, accord, compound) |
| concord(noun, agreement, combination, accord, compound) |
| concursion(noun, join, connection, combine, link) |
| confusion(noun, mess, tangle, complication, predicament) |
| congeries |
| congestion |
| conglomeration |
| congregation(noun, agreement, combination, accord, compound) |
| congress(noun, organization, company, society, union) |
| connective(noun, connection, element, association, tie) |
| consociation(noun, organization, business, company, interest) |
| constituent(noun, connection, element, association, tie) |
| contact(noun, connection, element, link, association) |
| convergence(noun, join, connection, combine, link) |
| cooling-off period(noun, expression, check, delay, stay) |
| cooperation(business, company, interest, firm) |
| cooperative(noun, organization, business, company, interest) |
| copula(noun, connection, element, association, tie) |
| corporation(noun, organization, business, company, group) |