See also: hau, háu, hầu, hậu, ha'u, and -hau Vietnamese hàu on Vietnamese Wikipedia Alternative forms hào Etymology Non-Sino-Vietnamese reading of Chinese 蠔 (“oyster”, SV: hào). Pronunciation (Hà Nội) IPA(key): [haw˨˩] (Huế) IPA(key): [haw˦˩] (Saigon) IPA(key): [ha(ː)w˨˩] Noun (classifier con) hàu • (䗔, 𧓏) an oyster (mollusk; food) (vulgar, slang, colloquial) the vulva or vagina; female genitalia Derived terms dầu hàu (“oyster sauce”) Wikiwand - on Seamless Wikipedia browsing. On steroids.