light up

Definition from Wiktionary, a free dictionary

[edit] English

[edit] Verb

to light up (third-person singular simple present lights up, present participle lighting up, simple past and past participle lit up)

1. (transitive) To bring light to something, to brighten.
2. (intransitive) To become light, to brighten.

   He saw Mary and his face lit up.

3. (intransitive) To light a cigarette, pipe, etc.

   Smoking in this building is not allowed, so I always step outside to light up.

[edit] Translations