quy ước

== Vietnamese == === Etymology === Sino-Vietnamese word from 規約. === Pronunciation === (Hà Nội) IPA(key): [kwi˧˧ ʔɨək̚˧˦] (Huế) IPA(key): [kwɪj˧˧ ʔɨək̚˦˧˥] (Saigon) IPA(key): [wɪj˧˧ ʔɨək̚˦˥] === Noun === quy ước convention (generally accepted principle, method or behaviour) === Verb === quy ước to set a convention