synonymy
noun/sɪˈnɒnɪmi/
/sɪˈnɑːnɪmi/
[uncountable]- the fact of two or more words or expressions having the same meaningWord Originmid 16th cent.: via late Latin from Greek sunōnumia, from sunōnumos, from sun- ‘with’ + onoma ‘name’.
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synonymy