Definition of synonymy noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈnɒnɪmi//
; NAmE NAmE//ˈnɑːnɪmi//
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the fact of two or more words or expressions having the same meaning Word Origin mid 16th cent.: via late Latin from Greek sunōnumia, from sunōnumos, from sun- ‘with’ + onoma ‘name’.
See the Oxford Advanced American Dictionary entry: synonymy