a collection of things, shown publicly (e.g. of works of art, of commercial or industrial goods for sale etc)
showing, demonstration
Cases of word usage
1) a building on a sports ground for the use of players, spectators etc; a large tent as used for an exhibition (pavilion)
2) a person, business etc paying for a sport event, a team, an exhibition etc in return for advertising a product or trade mark (sponsor)
3) a place where many kinds of animals are kept for exhibition (zoo)