(computing, informal) A technique for serial communications using software instead of dedicated hardware. The software directly sets and samples the state of pins on the microcontroller.

The end of a drill bit that is held by the chuck of a drill

plural of bit map

(computing) A computer program that defeats some copy protection schemes by reading a disk one bit at a time, and directly interacting with the disk drive hardware.

(nautical) A turn of the cable about the end of the windlass, without the bits.

(obsolete, US, Pennsylvania region) The Spanish half real, or one sixteenth of a dollar.

(obsolete, rare) The part of a bit which is put in a horse's mouth.

simple past tense and past participle of bit bucket

present participle of bit bucket

An attractive woman, especially one that is a companion or sexual partner but to whom one is not seriously committed. / Something attractive or amusing but insubstantial.