Definition of jack

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"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..

Lern More About Jack

Camisole :: Camisole (n.) A short dressing jacket for women.
Kadder :: Kadder (n.) The jackdaw.
Jack :: Jack (n.) A device to pull off boots.
Jersey :: "Jersey (n.) A kind of knitted jacket; hence, in general, a closefitting jacket or upper garment made of an elastic fabric (as stockinet)..
Jack :: "Jack (n.) A flag, containing only the union, without the fly, usually hoisted on a jack staff at the bowsprit cap; -- called also union jack. The American jack is a small blue flag, with a star for each State..
Supple-jack :: Supple-jack (n.) A climbing shrub (Berchemia volubilus) of the Southern United States, having a tough and pliable stem..
Jack :: Jack (n.) A machine for twisting the sliver as it leaves the carding machine.
Crossjack :: Crossjack (n.) The lowest square sail, or the lower yard of the mizzenmast..
Jack :: "Jack (n.) A familiar nickname of, or substitute for, John..
Color :: Color (n.) A distinguishing badge, as a flag or similar symbol (usually in the plural); as, the colors or color of a ship or regiment; the colors of a race horse (that is, of the cap and jacket worn by the jockey)..
Triddler :: Triddler (n.) The jacksnipe.
Ketch :: Ketch (n.) A hangman. See Jack Ketch.
Jack :: Jack (n.) A young pike; a pickerel.
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..
Jacksnipe :: "Jacksnipe (n.) A small American sandpiper (Tringa maculata); -- called also pectoral sandpiper, and grass snipe..
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.
Jackwood :: "Jackwood (n.) Wood of the jack (Artocarpus integrifolia), used in cabinetwork..
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 :: "Jack (n.) A coarse and cheap mediaeval coat of defense, esp. one made of leather..
Split :: Split (v. i.) to divide one hand of blackjack into two hands, allowed when the first two cards dealt to a player have the same value..
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