1.a small quantity;
a spot of tea
2.a small fragment of something broken off from the whole;
a bit of rock caught him in the eye
3.an indefinitely short time;
wait just a moment
4.an instance of some kind;
it was a nice piece of work
5.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
6.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
7.a small amount of solid food; a mouthful;
all they had left was a bit of bread
8.a small fragment;
overheard snatches of their conversation
9.a short theatrical performance that is part of a longer program;
he did his act three times every evening
10. 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