Definition - Jack

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Jack

male donkey
any of several fast-swimming predacious fishes of tropical to warm-temperate seas
tool for exerting pressure or lifting
one of four face cards in a deck bearing a picture of a young prince
small flag indicating a ship''s nationality
game equipment consisting of one of several small objects picked up while bouncing a ball in the game of jacks
an electrical device consisting of a connector socket designed for the insertion of a plug
immense East Indian fruit resembling breadfruit of; its seeds are commonly roasted
someone who works with their hands; someone engaged in manual labor
a man who serves as a sailor
a small worthless amount; "you don''t know jack"
hunt with a jacklight
lift with a special device; "jack up the car so you can change the tire"
A familiar nickname of, or substitute for, John.
A coarse and cheap mediæval coat of defense, esp. one made of leather.
A pitcher or can of waxed leather; -- called also black jack.
To hunt game at night by means of a jack. See 2d Jack, n., 4, n.
To move or lift, as a house, by means of a jack or jacks. See 2d Jack, n., 5.