Tứ Hải

== Vietnamese == === Etymology === Sino-Vietnamese word from 四海, composed of 四 (“four”) and 海 (“sea”). === Pronunciation === (Hà Nội) IPA(key): [tɨ˧˦ haːj˧˩] (Huế) IPA(key): [tɨ˨˩˦ haːj˧˨] (Saigon) IPA(key): [tɨ˦˥ haːj˨˩˦] === Proper noun === Tứ Hải synonym of bốn bể (“the world”) (Chinese mythology) the four major seas where the four Dragon Kings reign