Ungo rhymes with:
van-gogh, ago, bourgault, forego, forgo, gau, go, goe, gogh, goh, legault, margaux, mongeau, ngo, undergo, van-gogh
Ungo sounds like:
umansky, umass, unanimous, unease, uneasy, unesco, ung, unhinge, unhook, unigesco, union's, unionize, unions, unions', unique, unisex, unisys, unisys', unisys's, unix, unmanage, unmask, unos, unwise, unz