互換 [ㄏㄨˋ ㄏㄨㄢˋ; hu4 huan4]
  to exchange
  ◄ ►
  互換
  ごかん
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  transposition
  interchange
  noun or verb acting prenominally (other than the above)
  compatible (e.g. PC)
  ◄ ►