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English definition of “lighten”

lighten

verb uk   /ˈlaɪ.tən/ us    /-t̬ən/

lighten verb (BECOME BRIGHT)

[I] to become less dark: The sky had lightened and there were breaks in the clouds.
Opposite
Pale and colourless and causing colour to fade

lighten verb (MAKE LESS HEAVY)

lighten sb's burden, load, etc. to make a difficult situation or responsibility easier: Getting a new assistant will lighten (= reduce) the workload considerably.Making things betterBecoming better

lighten verb (MAKE PALE)

[T] to make something lighter: The sun always lightens my hair.Pale and colourless and causing colour to fade

lighten verb (MAKE/BECOME LESS SERIOUS)

[I or T] to (cause to) become happier and less worried: His mood lightened after the phone call. He tried to lighten the atmosphere by telling a joke.Causing pleasureReassuring
(Definition of lighten from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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