ho·mo·phone /ˈhɑməˌfon, ˈho-/
  同音字;同音異義字
  homophone
  同音異義詞
  Hom·o·phone n.
  1. A letter or character which expresses a like sound with another.
  2. A word having the same sound as another, but differing from it in meaning and usually in spelling; as, all and awl; bare and bear; rite, write, right, and wright.
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  homophone
       n : two words are homophones if they are pronounced the same way
           but differ in meaning or spelling or both (e.g. bare and
           bear)