| contact(noun, communication, connection, transfer, exchange) |
| communication(noun, connection, transfer, exchange, contact) |
| cooperation(noun, communication, contact, relationship, correlation) |
| connection(noun, communication, association, transfer, exchange) |
| exchange(noun, connection, transfer, contact, relationship) |
| communion(noun, connection, transfer, exchange, contact) |
| interplay(noun, correlation) |
| transmission(communication, transfer, contact) |
| dealings(noun, communication, connection, contact, relationships) |
| interchange(noun, connection, association, transfer, exchange) |
| intercommunication(noun, communication, transfer, contact, correlation) |
| interworking |
| touch(noun, communication, connection) |
| intercourse(noun, communication, connection, transfer, exchange) |
| synergy(noun, communication, contact, relationship, cooperation) |
| collaboration(noun, communication, contact, cooperation, correlation) |
| tit for tat(expression, idiom) |
| reciprocity(noun, connection, association, parallel, relationship) |
| teamwork |
| traffic |