one's face lights up

idiom

—used to say that someone looks pleased and happy
Her face lit up when she saw him.

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one's face falls
one's face lights up
one's head off
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Cite this Entry

“One's face lights up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%27s%20face%20lights%20up. Accessed 31 Oct. 2025.

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