Words That Rhyme With "Onion" :
2 syllables:
banian, banyan, bunion, Bunyan, canyon, fanion, funen, grunion, Kenyan, minion, pinion, pinon, roentgen, ronyon, Runyon, trunnion, union, wanion
3 syllables:
champignon, communion, companion, disunion, dominion, nonunion, opinion, reunion, Virginian
4 syllables:
antiunion, Catalonian, Macedonian, postcommunion