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English definition of “synonymous”

synonymous

adjective [not gradable]  /sɪˈnɑn·ə·məs/ us  
English (of words) having the same or nearly the same meaning English If you say that one thing is synonymous with another, you mean that the two things are so closely connected in most people’s minds that one suggests the other: The name of Alfred Hitchcock is synonymous with movie thrillers.
(Definition of synonymous from the Cambridge Academic Content Dictionary © Cambridge University Press)
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