Bit

a small piece or quantity of something

a small fragment of something broken off from the whole

an indefinitely short time

an instance of some kind

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

a unit of measurement of information (from binary + digit)

a small amount of solid food

a small fragment

a short performance that is part of a longer program

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

the cutting part of a drill