Perfect homonyms are words identical both in sound and spelling,

Perfect homonyms are words identical both in sound and spelling, but different in ( ) .
【正确答案】：MEANING
【题目解析】：题干译文：完全同形同音异义词是拼写和读音相同，但什么不同的词？ Perfect homonyms are words identical both in sound and spelling, but different in meaning. 答案为meaning。