bright

(noun): An artist's brush used in oil and acrylic painting with a long ferrule and a flat, somewhat tapering bristle head.
(noun): Splendour; brightness
(noun): A person with a naturalistic worldview with no supernatural or mystical elements.
(noun): (in the plural) The high-beam intensity of motor vehicle headlamps.
(adjective): Visually dazzling; luminous, lucent, clear, radiant; not dark.
(adjective): Having a clear, quick intellect; intelligent.
(adjective): Vivid, colourful, brilliant.
(adjective): Happy, in good spirits.
(adjective): Sparkling with wit; lively; vivacious; cheerful.
(adjective): Illustrious; glorious.
(adjective): Clear; transparent.
(adjective): Manifest to the mind, as light is to the eyes; clear; evident; plain.

Your brights are on.
Could you please dim the light? It's far too bright.
He's very bright. He was able to solve the problem without my help.
The orange and blue walls of the sitting room were much brighter than the dull grey walls of the kitchen.
I woke up today feeling so bright that I decided to have a little dance.