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

Jack :: Jack (n.) A device to pull off boots.
Jack :: "Jack (n.) A compact, portable machine for planing metal..
Water Plate :: Water plate () A plate heated by hot water contained in a double bottom or jacket.
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..
Camisole :: Camisole (n.) A kind of straitjacket.
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..
Paltock :: Paltock (n.) A kind of doublet; a jacket.
Cheap-jack :: Cheap-jack (n.) Alt. of Cheap-joh.
Queller :: Queller (n.) A killer; as, Jack the Giant Queller..
Strake :: Strait-waistcoat (n.) Same as Strait-jacket.
Strait-laced :: Strait-jacket (n.) A dress of strong materials for restraining maniacs or those who are violently delirious. It has long sleeves, which are closed at the ends, confining the hands, and may be tied behind the back..
Flapjack :: Flapjack (n.) A fried dough cake containing fruit; a turnover.
Ululate :: Ululate (v. i.) To howl, as a dog or a wolf; to wail; as, ululating jackals..
Natterjack :: Natterjack (n.) A European toad (Bufo calamita), having a yellow line along its back..
Jack :: "Jack (n.) An impertinent or silly fellow; a simpleton; a boor; a clown; also, a servant; a rustic..
Jacket :: "Jacket (n.) A garment resembling a waistcoat lined with cork, to serve as a life preserver; -- called also cork jacket..
Grego :: Grego (n.) A short jacket or cloak, made of very thick, coarse cloth, with a hood attached, worn by the Greeks and others in the Levant..
Pike :: Pike (sing. & pl.) A large fresh-water fish (Esox lucius), found in Europe and America, highly valued as a food fish; -- called also pickerel, gedd, luce, and jack..
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..
Mistress :: Mistress (n.) The old name of the jack at bowls.
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