light up

Verb	1.	light up - start to burn with a bright flame; "The coal in the BBQ grill finally lit up" catch fire, take fire, ignite, combust, conflagrate, erupt - start to burn or burst into flames; "Marsh gases ignited suddenly"; "The oily rags combusted spontaneously"
	2.	light up - make lighter or brighter; "This lamp lightens the room a bit" illume, illuminate, illumine, light lighten up, lighten - become lighter; "The room lightened up" floodlight - illuminate with floodlights spotlight - illuminate with a spotlight, as in the theater
	3.	light up - become clear; "The sky cleared after the storm" brighten, clear, clear up
	4.	light up - ignite; "The sky lit up quickly above the raging volcano" ignite, light - cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette"
	5.	light up - begin to smoke; "After the meal, some of the diners lit up" fire up, light ignite, light - cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette"

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