Dictionary & Thesaurus

lighten up

1.	(verb) become lighter; "The room lightened up"
	Synonyms: lighten
	Related Words: change, illume, illuminate, illumine, irradiate, light, light up

2.	(verb) make lighter or brighter; "The paint will brighten the room"
	Synonyms: brighten, lighten
	Related Words: alter, change