bit

an indefinitely short time

“in just a bit”

the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press

“he looked around for the right size bit”

the part of a key that enters a lock and lifts the tumblers

a small fragment

a small amount of solid food; a mouthful

“all they had left was a bit of bread”

a small piece or quantity of something

“a bit of paper”

a short performance that is part of a longer program

a small fragment of something broken off from the whole

“a bit of rock caught him in the eye”

an instance of some kind

“he had a bit of good luck”

a unit of measurement of information (from binary + digit); the amount of information in a system having two equiprobable states

“there are 8 bits in a byte”

piece of metal held in horse's mouth by reins and used to control the horse while riding

“the horse was not accustomed to a bit”