sweet-talk - definition and synonyms

verb [transitive] informal 

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present tense
I/you/we/theysweet-talk
he/she/itsweet-talks
present participlesweet-talking
past tensesweet-talked
past participlesweet-talked
  1. to talk to someone in a very nice way in order to persuade them to do something

derived word

sweet talk

noun [uncountable]