Verb
-
begin to smoke
"After the meal, some of the diners lit up"
- fire up -
ignite
"The sky lit up quickly above the raging volcano"
-
become clear
"The sky cleared after the storm"
- clear up -
make lighter or brighter
"This lamp lightens the room a bit"
-
start to burn with a bright flame
"The coal in the BBQ grill finally lit up"