giao hoán

== Vietnamese == === Etymology === Sino-Vietnamese word from 交換, composed of 交 (“to exchange”) and 換 (“to exchange”), Japanese 交換 (kōkan), Middle Chinese 交換. === Pronunciation === (Hà Nội) IPA(key): [zaːw˧˧ hwaːn˧˦] (Huế) IPA(key): [jaːw˧˧ hwaːŋ˦˧˥] (Saigon) IPA(key): [jaːw˧˧ waːŋ˦˥] === Adjective === giao hoán (mathematics) commutative