Etymology
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polysemy (n.)

"fact of having multiple meanings," 1900, from French polysémie (1897), from Medieval Latin polysemus, from Greek polysemos "of many senses or meanings," from polys "many" (from PIE root *pele- (1) "to fill") + sēma "sign" (see semantic). Related: Polysemic.

updated on April 24, 2022

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Definitions of polysemy from WordNet

polysemy (n.)
the ambiguity of an individual word or phrase that can be used (in different contexts) to express two or more different meanings;
Synonyms: lexical ambiguity
From wordnet.princeton.edu, not affiliated with etymonline.