| bride(noun, companion, friend, contemporary, acquaintance) |
| broker(noun, representative, operative, manager, deputy) |
| cashier(noun, agent, official, worker, writer) |
| champion |
| changeling(replacement, alternative, alternate, backup, surrogate) |
| chaperon(noun, guide, associate, guard, friend) |
| chattel(noun, servant) |
| chum(noun, associate, companion, friend, contemporary) |
| classmate(noun, companion, friend, contemporary, acquaintance) |
| clubber(noun, friend, partner, ally, fellow) |
| co-operator |
| coadjutress |
| collaborative |
| comate(noun, guide, associate, friend, mate) |
| commissioner(noun, agent, representative, operative, manager) |
| compatriot(noun, associate, friend, partner, ally) |
| compeer(noun, associate, companion, friend, contemporary) |
| complement(noun, guide, associate, companion, friend) |
| concomitant(noun, guide, associate, companion, friend) |
| confrere(associate, unit, companion, follower, member) |