| communion(business, communication, connection, talk, trade) |
| conference(noun, meeting, convention, discussion, session) |
| congress(talk, meeting, convention, discussion, session) |
| contact with(expression, change, shift, reverse, trade) |
| converse(communication, connection, talk, transfer, contact) |
| conversion(noun, talk, argument, conversation) |
| convert into(expression, change, shift, reverse, trade) |
| correspondence(noun, change, communication, connection, talk) |
| counter |
| counterblow(trade, exchange, correspondence) |
| crossing(noun, trip, join, journey, connection) |
| crossroads(noun, join, connection, joint, junction) |
| deal in(expression, change, shift, reverse, trade) |
| dealings |
| deepen |
| delivery(communication, connection, talk, transfer, contact) |
| discussion(noun, talk, argument, meeting, conversation) |
| dissemination(communication, connection, talk, transfer, contact) |
| flick |
| go over to(expression, idiom, change, shift, reverse) |