Bright
Part of speech: adjective
Definition: Visually dazzling; luminous, lucent, clear, radiant; not dark. Intelligent, brilliant. Vivid, colourful, brilliant. Happy.
Part of speech: noun
Definition: An artists brush used in oil and acrylic painting with a long ferrule and a flat, somewhat tapering bristle head. A neologism intended as a positive-sounding umbrella term to describe various kinds of non-religious and non-superstitious people. (There is a Wikipedia article on this usage.)
Example sentence: Better keep yourself clean and bright; you are the window through which you must see the world.
Smart
Part of speech: adjective
Definition: Exhibiting social ability or cleverness.Exhibiting intellectual knowledge, such as that found in books.Good-looking.Cleverly and/or sarcastically humorous in a way that may be rude and disrespectful. Cf: (verb) to smart off; (noun) smarty pants, wise guy, wiseacre, wise-ass; (adjective) cute.Sudden and intense.Intense in feeling; painful. Used usually with the adverb intensifier right.
Part of speech: verb
Definition: To hurt or sting.
Example sentence: I guess I've got a smart wife.