Cognitive synonymy

Cognitive synonymy is a type of synonymy in which synonyms are so similar in meaning that they cannot be differentiated either denotatively or connotatively, that is, not even by mental associations, connotations, emotive responses, and poetic value. It is a stricter technical definition of synonymy, specifically for theoretical purposes. In usage employing this definition, synonyms with greater differences are often called near-synonyms rather than synonyms.

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