Definition of jack

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"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.

Lern More About Jack

Jacket :: Jacket (v. t.) To thrash; to beat.
Knave :: Knave (n.) A playing card marked with the figure of a servant or soldier; a jack.
Whimbrel :: Whimbrel (n.) Any one of several species of small curlews, especially the European species (Numenius phaeopus), called also Jack curlew, half curlew, stone curlew, and tang whaup. See Illustration in Appendix..
Langdak :: Langdak (n.) A wolf (Canis pallipes), found in India, allied to the jackal..
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..
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..
Wasp :: Wasp (n.) Any one of numerous species of stinging hymenopterous insects, esp. any of the numerous species of the genus Vespa, which includes the true, or social, wasps, some of which are called yellow jackets..
Jack :: Jack (n.) A lever for depressing the sinkers which push the loops down on the needles.
Black-jack :: Black-jack (n.) Caramel or burnt sugar, used to color wines, spirits, ground coffee, etc..
Jackdaw :: "Jackdaw (n.) See Daw, n..
Jack-a-dandy :: "Jack-a-dandy (n.) A little dandy; a little, foppish, impertinent fellow..
Jackmen :: Jackmen (pl. ) of Jackma.
Blende :: Blende (n.) A mineral, called also sphalerite, and by miners mock lead, false galena, and black-jack. It is a zinc sulphide, but often contains some iron. Its color is usually yellow, brown, or black, and its luster resinous..
Ululate :: Ululate (v. i.) To howl, as a dog or a wolf; to wail; as, ululating jackals..
Jackstraw :: "Jackstraw (n.) An effigy stuffed with straw; a scarecrow; hence, a man without property or influence..
Jack :: "Jack (n.) A coarse and cheap mediaeval coat of defense, esp. one made of leather..
Allfours :: Allfours () A game at cards, called High, Low, Jack, and the Game..
Jacketed :: "Jacketed (a.) Wearing, or furnished with, a jacket..
Bonito :: Bonito (n.) The skipjack (Sarda Mediterranea) of the Atlantic, an important and abundant food fish on the coast of the United States, and (S. Chilensis) of the Pacific, and other related species. They are large and active fishes, of a blue color with black oblique stripes..
Skipjack :: Skipjack (n.) A shallow sailboat with a rectilinear or V-shaped cross section.
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