Hải Khẩu

== Vietnamese == === Etymology === Sino-Vietnamese word from 海口. === Pronunciation === (Hà Nội) IPA(key): [haːj˧˩ xəw˧˩] (Huế) IPA(key): [haːj˧˨ kʰəw˧˨] (Saigon) IPA(key): [haːj˨˩˦ kʰəw˨˩˦] === Proper noun === Hải Khẩu Haikou (the provincial capital and most populous prefecture-level city of Hainan province, China; located on the north side of Hainan island).