Real Dictionary

bat
countable noun: A bat is a specially shaped piece of wood that is used for hitting the ball in baseball, softball, cricket, rounders, or table tennis.
verb: When you bat, you have a turn at hitting the ball with a bat in baseball, softball, cricket, or rounders.

bat in American English 1
any stout club, stick, or cudgel
to strike with or as with a bat
to use a bat
intransitive verb: to strike at the ball with the bat
noun: the wooden club used in certain games, as baseball and cricket, to strike the ball
transitive verb: to strike or hit with or as if with a bat or club

bat in American English 2
any of an order (Chiroptera) of furry, nocturnal flying mammals having membranous wings and navigating by echolocation; chiropter: various bats feed on insects, nectar, fruit, flesh, or blood
noun: any of numerous flying mammals of the order Chiroptera, of worldwide distribution in tropical and temperate regions, having modified forelimbs that serve as wings and are covered with a membranous skin extending to the hind limbs

bat in American English 3
to wink; blink; flutter
transitive verb: to blink; wink; flutter

bat in British English 1
noun: any of various types of club with a handle, used to hit the ball in certain sports, such as cricket, baseball, or table tennis

bat in British English 3
verb: to wink or flutter (one's eyelids)

bat. in American English
abbreviation: battalion