To move in continuous contact with a surface without rolling; slide; hence, to pass smoothly and easily; glide.To slide suddenly and unawares in such a way as to threaten or result in a fall: make a misstep; lose one's footing: as, to slip on the ice.To fall into error or fault; err or go astray, as in speech or conduct.To become slack or loose and move or start out of place, as from a socket or the like.To pass quietly, imperceptibly, or elusively; hence, to slink; sneak; steal: with in, out, or away: as, the time slips away; errors are sure to slip in; he slipped out of the room.To escape insensibly, especially from the memory; be lost.To go loose or free; be freed from check or restraint, as a hound from the leash.To pass unregarded or unappropriated: with let: as, to let an opportunity slip; to let the matter slip.To detach a ship from her anchor by slipping or letting go the chain at a shackle, because there is not time to heave the anchor up. A buoy is fastened to the part of the chain slipped, so that it may be recovered.To have a miscarriage.Synonyms andGlide, etc. See slide.To put or place secretly, gently, or so as not to be observed.To pass over or omit; pass without appropriating, using, or the like; hence, to let slip; allow to escape; lose by oversight or inattention.To let loose; release from restraint: as, to slip the hounds.Nautical, to let go entirely: as, to slip a cable or an anchor.To throw off, or disengage one's self from.To drop or bring forth prematurely: said of beasts: as, the brown mare has slipped her foal.To make slips of for planting; cut slips from.n. The act of slipping; a sudden sliding or slipping of the feet, as in walking on ice or any slippery place.n. An unintentional fault; an error or mistake inadvertently made; a blunder: as, a slip of the pen or of the tongue. See lapsus.n. A venial transgression; an indiscretion; a backsliding.n. In geology, a small fault or dislocation of the rocks; a narrow fissure, filled with flucan, and not exhibiting much vertical shifting.n. 5, In marine engineering, same as drag, 8.n. Amount of space available for slipping; also, amount or extent of slip made.n. In metallurgy, the subsidence of a scaffold in a blast-furnace. See scaffold, n., 7.n. A thing easily slipped off or on.n. A leash or noose by which a dog is held: so called from its being so made as to slip or fall loose by relaxing the hold.n. A wrought-iron cylindrical case in which the wood used in the manufacture of gunpowder is distilled.n. Potters' clay or paste reduced to a semifluid condition about the consistence of cream.n. Matter found in the trough of a grindstone after the grinding of edge-tools.n. A counterfeit coin made of brass masked with silver.n. An inclined plane on which a vessel is supported while building, or on which she is hauled up for repair; also, a contrivance for hauling vessels out of the water for repairs, etc.n. A narrow passage.n. A space between two wharves, or in a dock, in which a vessel lies.n. A long seat or narrow pew in a church, often without a door.n. A narrow, pew-like compartment in a restaurant or oyster-house, having one or two fixed seats and a table.n. A long, narrow, and more or less rectangular piece; a strip: as, a slip of paper.n. A strip of wood or other material; specifically, such a strip inserted in a dovetailed groove, or otherwise attached to a piece of wood or metal, to form a slipping or wearing surface for a sliding part.n. A detachable straight or tapered piece which may be slipped in between parts to separate them or to fill a space left between them.n. In insurance, a note of the contract made out before the policy is effected, for the purpose of asking the consent of underwriters to the proposed policy.n. A particular quantity of yarn.n. A twig detached from the main stock, especially for planting or grafting; a scion; a cutting: as, a slip of a vine: often used figuratively.n. In printing, the long and narrow proof taken from a slip-galley of type before it is made up into pages or columns.n. plural In bookbinding, the pieces of twine that project from the back of a sewed but uncovered book, and can be slipped up or down.n. In cricket, one of the fielders, who stands at some distance behind and to the right of the wicket-keeper. See diagram under cricket.n. A device for the ready detachment of anything on shipboard that is secured by a lashing, in case it becomes necessary to let it go quickly.n. In upholstery, a hem forming a sort of tube to allow of the insertion of a wire, or the like, for stiffening.n. A block of whale's blubber as cut or stripped from the animal.n. A miscarriage or abortion.n. Viscous matter; slime.n. A dish of curds made with rennet wine.n. A young sole.n. n. In electricity, in alternating-current induction-motors, the difference in speed from synchronism, that is, from rotation in step with the alternations of the impressed voltage, nsually given as fraction or in percentage of synchronous speed.n. The moving on each other of two surfaces which are intended to be immovable with respect to each other, as the slip of the plates in a riveted joint under stress.n. In pumps, the difference between the actual volume of water or other liquid delivered by a pump during one complete stroke, revolution, or period, and the theoretical volume during the same stroke, revolution, or period as determined by calculation of the displacement. It is due both to leaks past pistons, plungers, and valves, and to the back-flow through valves during the time the valves are closing. It is usually expressed as a percentage of the displacement volume.n. See the extract.