Definition of jack

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Jack (n.) A wooden wedge for separating rocks rent by blasting.

Lern More About Jack

Bootjack :: Bootjack (n.) A device for pulling off boots.
Jack :: Jack (n.) A grating to separate and guide the threads; a heck box.
Jackass :: Jackass (n.) The male ass; a donkey.
Straight :: Straight (superl.) Composed of cards which constitute a regular sequence, as the ace, king, queen, jack, and ten-spot; as, a straight hand; a straight flush..
Flapjack :: Flapjack (n.) A fried dough cake containing fruit; a turnover.
Black-jack :: Black-jack (n.) The ensign of a pirate.
Ketch :: Ketch (n.) A hangman. See Jack Ketch.
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..
Supplely :: Supple-jack (n.) A somewhat similar tropical American plant (Paullinia Curassavica); also, a walking stick made from its stem..
Merou :: Merou (n.) See Jack, 8 (c)..
Jack :: Jack (n.) A pitcher or can of waxed leather; -- called also black jack.
Caddow :: Caddow (n.) A jackdaw.
Strake :: Strait-waistcoat (n.) Same as Strait-jacket.
Black-jack :: Black-jack (n.) A name given by English miners to sphalerite, or zinc blende; -- called also false galena. See Blende..
Jack :: "Jack (n.) A hood or other device placed over a chimney or vent pipe, to prevent a back draught..
Saurel :: Saurel (n.) Any carangoid fish of the genus Trachurus, especially T. trachurus, or T. saurus, of Europe and America, and T. picturatus of California. Called also skipjack, and horse mackerel..
Jackscrew :: "Jackscrew (n.) A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5..
Jacket :: "Jacket (n.) An outer covering for anything, esp. a covering of some nonconducting material such as wood or felt, used to prevent radiation of heat, as from a steam boiler, cylinder, pipe, etc..
Black-jack :: Black-jack (n.) The Quercus nigra, or barren oak..
Jacket :: "Jacket (n.) A garment resembling a waistcoat lined with cork, to serve as a life preserver; -- called also cork jacket..
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