comrade, associate, colleague, partner, cohort, confederate, crony, compatriot, compeer, ally, fellow, hobnobber, workmate, supporter, accomplice, cobber, mate, coconspirator, companion, comate, co-worker, fellow worker, running mate, friend, offsider, oppo, collaborator, confrere, buddy, acquaintance, chum, coworker, pal, contact, connection, affiliate, confrère, team-mate, co-partner, teammate, helper, assistant, sidekick, playmate, pard, main man, copartner, participant, bedfellow, accessory … more