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Synonyms

lighten up

Idioms  
  1. Become or cause to become less serious or gloomy, and more cheerful. For example, Lighten up, Sam—it'll turn out all right. This slangy expression transfers reducing a physical weight to a change of mood or attitude.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

That isn’t to say that trading activity doesn’t lighten up during the summer months.

From MarketWatch Apr. 29, 2026

If individual investors and large institutions collectively decide to lighten up on their dollars, it will leave a mark.

From Barron's Feb. 19, 2026

Or did the embrace of “Rocky” and “Jaws” mean that audiences wanted their movies to lighten up?

From The Wall Street Journal Dec. 18, 2025

The storms that battered the Hill Country for the last four days began to lighten up, although isolated pockets of heavy rain were still possible.

From Los Angeles Times Jul. 9, 2025

The mood doesn’t lighten up until Mom brings out the peach cobbler that Lee Lee and I made.

From "Piecing Me Together" by Renée Watson

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