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Jack :: "Jack (n.) A portable machine variously constructed, for exerting great pressure, or lifting or moving a heavy body through a small distance. It consists of a lever, screw, rack and pinion, hydraulic press, or any simple combination of mechanical powers, working in a compact pedestal or support and operated by a lever, crank, capstan bar, etc. The name is often given to a jackscrew, which is a kind of jack..

Jack :: Jack (n.) A machine for twisting the sliver as it leaves the carding machine.

Black-jack :: Black-jack (n.) Caramel or burnt sugar, used to color wines, spirits, ground coffee, etc..

Ignis Fatuus :: Ignis fatuus () A phosphorescent light that appears, in the night, over marshy ground, supposed to be occasioned by the decomposition of animal or vegetable substances, or by some inflammable gas; -- popularly called also Will-with-the-wisp, or Will-o'-the-wisp, and Jack-with-a-lantern, or Jack-o'-lantern..

Spencer :: Spencer (n.) A short jacket worn by men and by women.

Jackstone :: Jackstone (n.) One of the pebbles or pieces used in the game of jackstones.

Jackstone :: Jackstone (n.) A game played with five small stones or pieces of metal. See 6th Chuck.

Jersey :: "Jersey (n.) A kind of knitted jacket; hence, in general, a closefitting jacket or upper garment made of an elastic fabric (as stockinet)..

Smokejack :: Smokejack (n.) A contrivance for turning a spit by means of a fly or wheel moved by the current of ascending air in a chimney.

Jackdaw :: "Jackdaw (n.) See Daw, n..

Jackal :: "Jackal (n.) Any one of several species of carnivorous animals inhabiting Africa and Asia, related to the dog and wolf. They are cowardly, nocturnal, and gregarious. They feed largely on carrion, and are noted for their piercing and dismal howling..

Juppon :: "Juppon (n.) A sleeveless jacket worn over the armor in the 14th century. It fitted closely, and descended below the hips..

Flapjack :: Flapjack (n.) A fried dough cake containing fruit; a turnover.

Minute-jack :: Minute-jack (n.) A figure which strikes the hour on the bell of some fanciful clocks; -- called also jack of the clock house.

Crossjack :: Crossjack (n.) The lowest square sail, or the lower yard of the mizzenmast..

Jack :: "Jack (n.) A mechanical contrivance, an auxiliary machine, or a subordinate part of a machine, rendering convenient service, and often supplying the place of a boy or attendant who was commonly called Jack.

Jackpudding :: Jackpudding (n.) A merry-andrew; a buffoon.

Jack :: "Jack (n.) A large tree, the Artocarpus integrifolia, common in the East Indies, closely allied to the breadfruit, from which it differs in having its leaves entire. The fruit is of great size, weighing from thirty to forty pounds, and through its soft fibrous matter are scattered the seeds, which are roasted and eaten. The wood is of a yellow color, fine grain, and rather heavy, and is much used in cabinetwork. It is also used for dyeing a brilliant yellow..

Jack Ketch :: "Jack Ketch () A public executioner, or hangman..

Saury :: Saury (n.) A slender marine fish (Scomberesox saurus) of Europe and America. It has long, thin, beaklike jaws. Called also billfish, gowdnook, gawnook, skipper, skipjack, skopster, lizard fish, and Egypt herring..

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