What is Bat ?

Bat is (noun) 1. a piece of wood used for hitting a ball a baseball bat a cricket bat he did it off his own bat he decided to do it himself, without asking anyone (informal.) 2. a little animal, similar to a mouse, which can fly Bats hang upside down. ((verb)) 1. to be one of the two batsmen or to be the team which is batting in a cricket match England batted all day. Vaughan is batting. 2. to be the batter in a baseball match I watched him batting on TV this afternoon. 3. never batted an eyelid showed no surprise at all


source: Easier English, Student Dictionary Upper Intermediate Level