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.

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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..
Jackstay :: "Jackstay (n.) A rail of wood or iron stretching along a yard of a vessel, to which the sails are fastened..
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..
Natterjack :: Natterjack (n.) A European toad (Bufo calamita), having a yellow line along its back..
Water Plate :: Water plate () A plate heated by hot water contained in a double bottom or jacket.
Black-jack :: Black-jack (n.) A large leather vessel for beer, etc..
Ululate :: Ululate (v. i.) To howl, as a dog or a wolf; to wail; as, ululating jackals..
Jackdaw :: "Jackdaw (n.) See Daw, n..
Jacksnipe :: "Jacksnipe (n.) A small American sandpiper (Tringa maculata); -- called also pectoral sandpiper, and grass snipe..
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..
Jack :: "Jack (n.) A compact, portable machine for planing metal..
Jack :: Jack (n.) A machine for slicking or pebbling leather.
Bed Screw :: Bed screw () A form of jack screw for lifting large bodies, and assisting in launching..
Jerkin :: Jerkin (n.) A jacket or short coat; a close waistcoat.
Juddock :: Juddock (n.) See Jacksnipe.
Jacksaw :: Jacksaw (n.) The merganser.
Jacket :: "Jacket (v. t.) To put a jacket on; to furnish, as a boiler, with a jacket..
Camisole :: Camisole (n.) A kind of straitjacket.
Deal :: Deal (n.) Specifically: To distribute, as cards, to the players at the commencement of a game; as, to deal the cards; to deal one a jack..
Jackass :: Jackass (n.) A conceited dolt; a perverse blockhead.
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