to lighten up
uk flag
/lˈaɪʔn̩ ˈʌp/
British pronunciation
/lˈaɪtən ˈʌp/

Definition & Meaning of "lighten up"

to lighten up
[phrase form: lighten]
01

to make a space or environment become brighter and less gloomy, by adding more light sources or using lighter colors and materials

to lighten up definition and meaning
example
Example
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Painting the walls a lighter color will lighten up the room and make it feel more spacious.
Adding more lamps and windows will lighten up the space and make it feel less dark and dreary.
02

to become brighter and less gloomy

to lighten up definition and meaning
example
Example
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The sky is lightening up as the sun begins to rise over the horizon.
The room lightens up as the curtains are pulled open, letting in the morning sun.
03

to relax and take things less seriously

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Example
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Take a deep breath and lighten up – you're worrying too much.
Let 's not dwell on the past; just lighten up and enjoy the moment.
04

to help someone feel more cheerful and less stressed

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Example
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She cracked a joke to lighten up the mood and ease the tension.
His playful banter helped to lighten the atmosphere up and make everyone feel more at ease.
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