light up

phrasal verb·1 sense·particle up

Meanings

1

Become bright or animated

Appearanceuncommon

Why “up”? Rising into view. What comes up becomes present and visible.

Her face lit up at the news.
Her face brightened with delight at hearing the news.
The street lit up when the festival lights came on.
The street became bright when the festival lights came on.

Test yourself

Her face lit up at the news. What does it mean?

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