比赛 (bǐsài) functions as both a verb meaning "to compete" and a noun meaning "competition" or "match." It is used for all kinds of contests, from sports to academic competitions. For example, 赢得比赛 means "to win the competition."
明天我们要和隔壁班比赛篮球。
míngtiān wǒmen yào hé gébì bān bǐsài lánqiú.
Tomorrow we're going to play a basketball game against the class next door.
她准备参加下个月的唱歌比赛。
tā zhǔnbèi cānjiā xià gè yuè de chànggē bǐsài.
She is preparing to enter a singing competition next month.
这场比赛非常精彩,观众都站了起来。
zhè chǎng bǐsài fēicháng jīngcǎi, guānzhòng dōu zhàn le qǐlái.
This game was extremely exciting, and the audience all stood up.