verb, modal particle, adverb · to lose a game or be beaten in a competition

他在围棋比赛中输给了对手。

verb · to enter or input data, such as a password

在取款机上输密码时要注意遮挡。

verb · to donate or contribute (literary)

他致富后不忘家乡，慷慨输金修路。

verb · to transport, convey, or transmit

这条管道负责向干旱地区输水。