交换 | jiāo huàn | to exchange; to swap; to switch (telecom); commutative (math); to commute | |
转换 | zhuǎn huàn | to change; to switch; to convert; to transform | |
更换 | gēng huàn | to replace (a worn-out tire etc); to change (one's address etc) | |
变换 | biàn huàn | to transform; to convert; to vary; to alternate; a transformation | |
兑换 | duì huàn | to convert; to exchange |