quan hệ tình dục

== Vietnamese == === Etymology === Sino-Vietnamese word from 關係情慾, composed of 關係 (“relations”) and 情慾 (“lust”). === Pronunciation === (Hà Nội) IPA(key): [kwaːn˧˧ he˧˨ʔ tïŋ˨˩ zʊwk͡p̚˧˨ʔ] (Huế) IPA(key): [kwaːŋ˧˧ hej˨˩ʔ tɨn˦˩ jʊwk͡p̚˨˩ʔ] (Saigon) IPA(key): [waːŋ˧˧ hej˨˩˨ tɨn˨˩ jʊwk͡p̚˨˩˨] === Noun === quan hệ tình dục sexual intercourse === Verb === quan hệ tình dục to have sexual intercourse; to have sex