| brother(noun, equality) |
| coadjutor(noun, associate, partner, colleague, coworker) |
| pal(noun, associate, companion, friend, contemporary) |
| bedfellow |
| compatriot(associate, companion, friend, partner, ally) |
| helpmate(noun, companion, friend, contemporary, acquaintance) |
| like(noun, match, equal, contemporary, equivalent) |
| playmate(noun, companion, friend, contemporary, acquaintance) |
| teammate(associate, partner, colleague, coworker, collaborator) |
| ace |
| alter ego(noun, expression, match, companion, friend) |
| classmate(noun, companion, friend, contemporary, acquaintance) |
| cohort(noun, associate, companion, friend, contemporary) |
| confederate(associate, companion, friend, partner, ally) |
| parallel(noun, match, equivalent) |
| rival(noun, match, equal, contemporary, equivalent) |
| roommate(noun, companion, friend, contemporary, acquaintance) |
| schoolmate(noun, companion, friend, contemporary, acquaintance) |
| twin(noun, match, associate, companion, friend) |
| acquaintance(noun, companion, friend, contemporary, peer) |