old chum
- palClose trusted companion
- buddyInformal term for companion
- matePartner or companion
- friendNon-kin mutual bond
- comradeFellow member, shared cause
companion · crony · confidant · sidekick · amigo · acquaintance · schoolmate · reunion · nostalgia · reminisce · handshake · familiar · trusted · loyal · fellowship · camaraderie · warmth · greeting
relational warmth/hostility
old chumold enemy
sworn enemy · nemesis · archenemy · bitter rival · mortal enemy