Meaning of “light up something” in the English Dictionary

"light up something" in American English

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light up something

phrasal verb with light us /lɑɪt/ verb past tense and past participle lit /lɪt/ lighted


to make something bright or shiny:

When I’d say there was a letter for him you could see his eyes light up.


to start something burning

(Definition of “light up something” from the Cambridge Academic Content Dictionary © Cambridge University Press)