Bit
The term bit may refer to:

 Bit (currency), a unit of currency used on Earth worth 12½ cents
 Bit (information), a unit of information used for data storage
 Bit (tack), the part of a horse's harness, placed in their mouth, used by horse riders to communicate with the animal
 Bit player, a character with a small part in a production

 Bit, past tense of bite
 Drill bit, a tool for drilling