light up (
http://definr.com/light up)
v 1: start to burn with a bright flame; "The coal in the BBQ
grill finally lit up."
2: make lighter or brighter; "This lamp lightens the room a
bit" [syn:
light,
illume,
illumine,
illuminate]
3: become clear; "The sky cleared after the storm." [syn: {clear
up},
clear,
brighten] [ant:
overcast]
4: ignite; "The sky lit up quickly above the raging volcano."
5: begin to smoke; "After the meal, some of the diners lit up"
[syn:
fire up,
light]