bright

(transitive) Often followed by up: to cast light on (someone or something); to brighten, to illuminate.

(transitive, figuratively) Often followed by up: to cause (someone or something) to be bright (in various senses); to brighten; specifically, to make (someone or something) energetic, or happy and optimistic.

(intransitive, also figuratively) Often followed by up: to become bright (in various senses); to brighten.