Definition of "light up" in 英语

Verb

1. To illuminate, to bring light to something, to brighten.

2. To start to emit light; to become activated as a light source.

3. To show an increase in activity or a brightening of mood.

   • He saw Mary and his face lit up.

4. To ignite.

5. To light a cigarette, pipe, etc.

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

6. To light a cigarette, pipe, etc. for (someone).

7. To make happy.

8. To introduce (someone to something), to make someone aware of or interested in something; turn on.

9. To open fire on a target or group of targets, especially with rockets, a flamethrower, etc.

   • telling me to light it up if it didn't stop approaching

10. To shock (someone) with a stun gun.

11. To activate the emergency sirens on a police vehicle in order to pull someone over.

    • I guess he doesn't realize who's behind him, because the way he's darting and weaving, he's practically begging me to light him up.

Verb

1. To loosen, slacken, or ease off.

   • to light up the jib-sheets