Home › Words › C › chummochummochummo means chum; friend.EtymologyFrom chum + -o.nounchum; friendDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.chum 83% match — A friend; a pal. vs chummo →chommie 75% match — A friend; a chum. vs chummo →chummy 71% match — Friendly vs chummo →chumship 68% match — The condition of being chums; friendship. vs chummo →chummily 67% match — In a chummy manner vs chummo →chummer 65% match — One who fishes by casting chum into the water to attract the fish. vs chummo →buddyish 62% match — chummy; matey; friendly vs chummo →choom 62% match — An Englishman. vs chummo →