| collusive(adjective, joint, cooperative, unified) |
| combined(adjective, joint, cooperative, unified) |
| combining(adjective, joint, cooperative, unified) |
| common(adjective, joint, cooperative, unified) |
| concerted(adjective, joint, cooperative, unified) |
| concurring(adjective, joint, cooperative, unified) |
| construction(noun, connection, assembly, uniting) |
| coordinated(adjective, joint, cooperative, unified) |
| fitting together(expression, connection, assembly, uniting) |
| hand in glove(adjective, joint, cooperative, unified) |
| harmonious(adjective, joint, cooperative, unified) |
| in league(adjective, joint, cooperative, unified) |
| interdependent(adjective, joint, cooperative, unified) |
| participating(adjective, joint, cooperative, unified) |
| piecing together(expression, connection, assembly, uniting) |
| placation(noun, connection, reconciliation, conciliation) |
| propitiation(noun, connection, reconciliation, conciliation) |
| rapprochement(noun, connection, reconciliation, conciliation) |
| reciprocal(adjective, joint, cooperative, unified) |
| reconcilement(noun, connection, reconciliation, conciliation) |