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English definition of “brighten”

brighten

verb [I or T] (HAPPIER)    /ˈbraɪ.tən/ US  /-t̬ən/
to (cause to) become happy or full of hope: Her eyes brightened when she saw him enter the room. There are, however, one or two items of good news to brighten the economic picture a bit.Causing pleasureFeeling pleasure and happinessTaking pleasure in something
(Definition of brighten verb (HAPPIER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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