Definition of bit:
a small piece or quantity of something; "a spot of tea"; "a bit of paper"; "a bit of lint"; "I gave him a bit of my mind"
a small fragment of something broken off from the whole; "a bit of rock caught him in the eye"
an indefinitely short time; "wait just a moment"; "in a mo"; "it only takes a minute"; "in just a bit"
an instance of some kind; "it was a nice piece of work"; "he had a bit of good luck"
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"
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"
a small amount of solid food; a mouthful; "all they had left was a bit of bread"
a small fragment; "overheard snatches of their conversation"
a short theatrical performance that is part of a longer program; "he did his act three times every evening"; "she had a catchy little routine"; "it was one of the best numbers he ever did"
the part of a key that enters a lock and lifts the tumblers
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"