trope
trəʊp/
noun
noun: trope; plural noun: tropes
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a figurative or metaphorical use of a word or expression.“both clothes and illness became tropes for new attitudes toward the self”
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a significant or recurrent theme; a motif.“she uses the Eucharist as a pictorial trope”
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Origin
mid 16th century: via Latin from Greek tropos ‘turn, way, trope’, from trepein ‘to turn’.
How my heart sings 