light up (something)

idiom

Definition of light up (something)

1 : to provide light for (something) : to fill (something) with light light a room up Fireworks lit up the sky. often used figuratively A smile lights up her whole face.Her smile lights up the room.
2 : to cause (something) to burn She lit up a cigarette.

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Dictionary Entries Near light up (something)

light up

light up (something)

light valve

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Cite this Entry

“Light up (something).” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20up%20%28something%29. Accessed 25 May. 2022.

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