#1 entertain v. provide entertainment for. wn
#2 entertain v. [think of, toy with, flirt with, think about] take into consideration, have in view; "He entertained the notion of moving to South America". wn
#3 entertain v. [harbor, harbour, hold, nurse] maintain (a theory, thoughts, or feelings); "bear a grudge"; "entertain interesting notions"; "harbor a resentment". wn
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