light up

Từ điển Oxford Advanced Learner 8th

ˌlight ˈup | ˌlight sthˈup derived
1. (informal)to begin to smoke a cigarette
•They all lit up as soon as he left the room.
•He sat back and lit up a cigarette.
2. to become or to make sth become bright with light or colour
• There was an explosion and the whole sky lit up.
• The night sky was lit up with fireworks.
3. if sb's eyes or face light up, or sth lights them up, they show happiness or excitement
•His eyes lit up when she walked into the room.
•A smile lit up her face.
Main entry: ↑light_derived