(idiomatic) A mistake in speech.

(psychology) A mistake in speech or action in which a person supposedly shows their true subconscious desires.

(cricket) The fielding position between first slip and third slip.

(cricket) a fielding position on the leg side of the wicket-keeper, designed to catch a ball after it hits the bat and deflects by a small amount

Alternative form of slipped disc

(transitive, idiomatic) To divulge a secret, as by accident or mistake.

(idiomatic) A (small) error or mistake; a (minor) misstep.

(idiomatic) To err, falter; to make a mistake, especially a seemingly small error.

A component of an electromechanical device, which, in combination with brushes, provides a continuous electrical connection between stationary and rotating conductors.

(rail transport) A coach at the end of a long-distance train which carries passengers for an intermediate destination and is decoupled or "slipped" and left behind. (In bygone times the decoupling was done on the move; the rest of the train did not stop.)