Meaning of “synonymous” in the English Dictionary

british dictionary

"synonymous" in British English

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synonymousadjective

uk /sɪˈnɒn.ɪ.məs/ us /sɪˈnɑː.nə.məs/

C2 having the same meaning:

The words "annoyed" and "irritated" are more or less synonymous.

C2 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:

Oscar Wilde's name is synonymous with wit.

(Definition of “synonymous” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"synonymous" in American English

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synonymousadjective [ not gradable ]

us /sɪˈnɑn·ə·məs/

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)