/ ɪnˌsɪnjuˈeɪʃn; NAmE / noun
1.
[ C ] something that sb insinuates :
She resented the insinuation that she was too old for the job.
2.
[ U ] the act of insinuating sth
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WORD ORIGIN
mid 16th cent.: from Latin insinuatio(n-) , from insinuare , from in- in + sinuare to curve.