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9 definitions found

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jack \Jack\ (j[a^]k), n. [Pg. jaca, Malayalam, tsjaka.] (Bot.)
     A large tree, the {Artocarpus integrifolia}, common in the
     East Indies, closely allied to the breadfruit, from which it
     differs in having its leaves entire. The fruit is of great
     size, weighing from thirty to forty pounds, and through its
     soft fibrous matter are scattered the seeds, which are
     roasted and eaten. The wood is of a yellow color, fine grain,
     and rather heavy, and is much used in cabinetwork. It is also
     used for dyeing a brilliant yellow. [Written also {jak}.]

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jack \Jack\, n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya
     'aq[=o]b Jacob; prop., seizing by the heel; hence, a
     supplanter. Cf. {Jacobite}, {Jockey}.]
     1. A familiar nickname of, or substitute for, John.
  
              You are John Rugby, and you are Jack Rugby. --Shak.
  
     2. An impertinent or silly fellow; a simpleton; a boor; a
        clown; also, a servant; a rustic. ``Jack fool.''
        --Chaucer.
  
              Since every Jack became a gentleman, There 's many a
              gentle person made a Jack.            --Shak.
  
     3. A popular colloquial name for a sailor; -- called also
        {Jack tar}, and {Jack afloat}.
  
     4. 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; as:
        (a) A device to pull off boots.
        (b) A sawhorse or sawbuck.
        (c) A machine or contrivance for turning a spit; a smoke
            jack, or kitchen jack.
        (b) (Mining) A wooden wedge for separating rocks rent by
            blasting.
        (e) (Knitting Machine) A lever for depressing the sinkers
            which push the loops down on the needles.
        (f) (Warping Machine) A grating to separate and guide the
            threads; a heck box.
        (g) (Spinning) A machine for twisting the sliver as it
            leaves the carding machine.
        (h) A compact, portable machine for planing metal.
        (i) A machine for slicking or pebbling leather.
        (k) A system of gearing driven by a horse power, for
            multiplying speed.
        (l) A hood or other device placed over a chimney or vent
            pipe, to prevent a back draught.
        (m) In the harpsichord, an intermediate piece
            communicating the action of the key to the quill; --
            called also {hopper}.
        (n) In hunting, the pan or frame holding the fuel of the
            torch used to attract game at night; also, the light
            itself. --C. Hallock.
  
     5. 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.
  
     6. The small bowl used as a mark in the game of bowls.
        --Shak.
  
              Like an uninstructed bowler who thinks to attain the
              jack by delivering his bowl straight forward upon
              it.                                   --Sir W.
                                                    Scott.
  
     7. The male of certain animals, as of the ass.
  
     8. (Zo["o]l.)
        (a) A young pike; a pickerel.
        (b) The jurel.
        (c) A large, California rock fish ({Sebastodes
            paucispinus}); -- called also {boccaccio}, and
            {m['e]rou}.
        (d) The wall-eyed pike.
  
     9. A drinking measure holding half a pint; also, one holding
        a quarter of a pint. [Prov. Eng.] --Halliwell.
  
     10. (Naut.)
         (a) 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.
         (b) A bar of iron athwart ships at a topgallant masthead,
             to support a royal mast, and give spread to the royal
             shrouds; -- called also {jack crosstree}. --R. H.
             Dana, Jr.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jack \Jack\, v. t.
     To move or lift, as a house, by means of a jack or jacks. See
     2d {Jack}, n., 5.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jack \Jack\, n. [F. jaque, jacque, perh. from the proper name
     Jacques. Cf. {Jacquerie}.]
     A coarse and cheap medi[ae]val coat of defense, esp. one made
     of leather.
  
           Their horsemen are with jacks for most part clad. --Sir
                                                    J. Harrington.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jack \Jack\, n. [Named from its resemblance to a jack boot.]
     A pitcher or can of waxed leather; -- called also {black
     jack}. [Obs.] --Dryden.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jack \Jack\, v. i.
     To hunt game at night by means of a jack. See 2d {Jack}, n.,
     4, n.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:

  Jurel \Ju"rel\, n. (Zo["o]l.)
     A yellow carangoid fish of the Atlantic and Gulf coasts
     ({Caranx chrysos}), most abundant southward, where it is
     valued as a food fish; -- called also {hardtail}, {horse
     crevall['e]}, {jack}, {buffalo jack}, {skipjack}, {yellow
     mackerel}, and sometimes, improperly, {horse mackerel}. Other
     species of {Caranx} (as {C. fallax}) are also sometimes
     called jurel.

From WordNet (r) 2.0 [wn]:

  jack
       n 1: a small worthless amount; "you don't know jack" [syn: {diddly-squat},
             {diddlysquat}, {diddly-shit}, {diddlyshit}, {diddly}, {diddley},
             {squat}, {shit}]
       2: a man who serves as a sailor [syn: {mariner}, {seaman}, {tar},
           {Jack-tar}, {old salt}, {seafarer}, {gob}, {sea dog}]
       3: someone who works with their hands; someone engaged in
          manual labor [syn: {laborer}, {manual laborer}, {labourer}]
       4: immense East Indian fruit resembling breadfruit of; its
          seeds are commonly roasted [syn: {jackfruit}, {jak}]
       5: an electrical device consisting of a connector socket
          designed for the insertion of a plug
       6: game equipment consisting of one of several small objects
          picked up while bouncing a ball in the game of jacks
       7: small flag indicating a ship's nationality
       8: one of four face cards in a deck bearing a picture of a
          young prince [syn: {knave}]
       9: tool for exerting pressure or lifting
       10: any of several fast-swimming predacious fishes of tropical
           to warm-temperate seas
       11: male donkey [syn: {jackass}]
       v 1: lift with a special device; "jack up the car so you can
            change the tire" [syn: {jack up}]
       2: hunt with a jacklight [syn: {jacklight}]

From U.S. Gazetteer (1990) [gazetteer]:

  Jack, AL
    Zip code(s): 36346
 

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