An act or instance of slipping. • A woman's undergarment worn under a skirt or dress to conceal unwanted nudity that may otherwise be revealed by the skirt or dress itself; a shift. • A slipdress. • A mistake or error. • A berth; a space for a ship to moor. • A difference between the theoretical distance traveled per revolution of the propeller and the actual advance of the vessel. • A slipway. • A one-time return to previous maladaptive behavior after cure. • Any of several fielding positions to the off side of the wicket keeper, designed to catch the ball after being deflected from the bat; a fielder in that position (See first slip, second slip, third slip, fourth slip and fifth slip.) • A number between 0 and 1 that is the difference between the angular speed of a rotating magnetic field and the angular speed of its rotor, divided by the angular speed of the magnetic field. • A leash or string by which a dog is held; so called from its being made in such a manner as to slip, or become loose, by relaxation of the hand. • An escape; a secret or unexpected desertion. • Clipping of sideslip. • A portion of the columns of a newspaper, etc., struck off by itself; a proof from a column of type when set up and in the galley. • A child's pinafore. • An outside covering or case. • A counterfeit piece of money, made from brass covered with silver. • Matter found in troughs of grindstones after the grinding of edge tools. • A particular quantity of yarn. • A narrow passage between buildings. • Either side of the gallery in a theater. • A long seat or narrow pew in churches, often without a door. • A dislocation of a lead, destroying continuity. • The motion of the centre of resistance of the float of a paddle wheel, or the blade of an oar, through the water horizontally, or the difference between a vessel's actual speed and the speed it would have if the propelling instrument acted upon a solid; also, the velocity, relatively to still water, of the backward current of water produced by the propeller. • The difference between the actual and synchronous speeds of an induction motor. • The positional displacement in a sequence of transmitted symbols that causes the loss or insertion of one or more symbols. • A fish, the sole. • A newsletter produced by the setter of a cryptic clue-writing competition, containing a full list of winners and commentary on the clues.