[ verb ] make lighter or brighter
"This lamp lightens the room a bit"
Used in print(Marvin Schiller, "The Sheep's in the Meadow,"...)
The giant electric signs and marquees were lit_up for_the_first_time since blackout regulations had been instituted , and the atmosphere was alive with the feeling that victory was just around_the_corner .
[ verb ] start to burn with a bright flame
"The coal in the BBQ grill finally lit up."
Used in print(T. C. McClary, "The Flooded Desert," Argosy,...)
Her temper sparked like charcoal when it first lights_up .
[ verb ] ignite
"The sky lit up quickly above the raging volcano."