bright
adj. A2 Elementary Oxford US //ˈbɹaɪt// UK //bɹˈaɪt// bright Archaic Dialect General-service Literary
adj. giving out or reflecting a lot of light. You can also use it to describe someone who is very smart or a color that is strong and easy to see.
adj. emitting or reflecting a high intensity of light; characterized by mental quickness or vividness of color.
The sun is very bright today.
She wore a bright yellow raincoat so that drivers could see her clearly in the storm.
The young scientist showed a bright mind for physics, often solving complex equations that challenged even her senior professors.
As an English surname, from the root of bright. As an Anglicized German surname, from Brecht and Breit.
Usage
When describing intelligence, it is more common in British English than American English, which prefers 'smart'.