Synonyms and related words :
agent, arbitrator, bargainer, broker, business agent, cardholder, connection, contact, deputy, front, front man, go-between, interagent, interceder, intercessor, intermediary, intermediate, intermediate agent, intermediator, intermedium, internuncio, interpleader, intervener, interventionist, interventor, labor organizer, mediator, medium, middleman, mouthpiece, negotiant, negotiatress, negotiatrix, ombudsman, organizer, shop steward, spokesman, spokeswoman, trade unionist, union member, union officer, unionist