A rotating cutting tool, used for cutting holes in rigid materials, that consists of an essentially conical point, relieved and fluted to form cutting lips, and spiral flutes which direct the chips away from the lips and toward ejection from the hole.

A twist drill. / Any other style of cutter, for example a spade drill, that is rotated and fed in a similar manner as a twist drill to of cut a hole in metal, wood or other materials.

(idiomatic) To leave (school, a race, etc.) prematurely and voluntarily. / To opt out of conventional society. / (of sound, electronic signal, etc.) To be lost or momentarily interrupted.

(idiomatic, intransitive) To fall asleep. / (idiomatic, transitive, especially US) To deliver; to deposit or leave; to allow passengers to alight. / To fall. / To lessen or reduce.

A block of silicon carbide or aluminium oxide used to dress diamond tools by removing the build-up of metal etc.

(now historical) A woman's dress designed for informal day wear.

(idiomatic) To force to leave or go away. / Used other than figuratively or idiomatically: see drive, off.

Alternative spelling of drive-off

The space in an electron tube in which there is no modulated field

(music) A style of electronic music focusing heavily on loud bass and fast-tempo drumbeats.