1. (n.) 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.

2. (n.) A familiar nickname of, or substitute for, John.

3. (n.) An impertinent or silly fellow; a simpleton; a boor; a clown; also, a servant; a rustic.

4. (n.) A popular colloquial name for a sailor; -- called also Jack tar, and Jack afloat.

5. (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

6. (n.) A device to pull off boots.

7. (n.) A sawhorse or sawbuck.

8. (n.) A machine or contrivance for turning a spit; a smoke jack, or kitchen jack.

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

10. (n.) A lever for depressing the sinkers which push the loops down on the needles.

11. (n.) A grating to separate and guide the threads; a heck box.

12. (n.) A machine for twisting the sliver as it leaves the carding machine.

13. (n.) A compact, portable machine for planing metal.

14. (n.) A machine for slicking or pebbling leather.

15. (n.) A system of gearing driven by a horse power, for multiplying speed.

16. (n.) A hood or other device placed over a chimney or vent pipe, to prevent a back draught.

17. (n.) In the harpsichord, an intermediate piece communicating the action of the key to the quill; -- called also hopper.

18. (n.) In hunting, the pan or frame holding the fuel of the torch used to attract game at night; also, the light itself.

19. (n.) 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.

20. (n.) The small bowl used as a mark in the game of bowls.

21. (n.) The male of certain animals, as of the ass.

22. (n.) A young pike; a pickerel.

23. (n.) The jurel.

24. (n.) A large, California rock fish (Sebastodes paucispinus); -- called also boccaccio, and merou.

25. (n.) The wall-eyed pike.

26. (n.) A drinking measure holding half a pint; also, one holding a quarter of a pint.

27. (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.

28. (n.) 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.

29. (n.) The knave of a suit of playing cards.

30. (n.) A coarse and cheap mediaeval coat of defense, esp. one made of leather.

31. (n.) A pitcher or can of waxed leather; -- called also black jack.

32. (v. i.) To hunt game at night by means of a jack. See 2d Jack, n., 4, n.

33. (v. t.) To move or lift, as a house, by means of a jack or jacks. See 2d Jack, n., 5.

AB Ancient Mariner Argonaut Dannebrog Dylan Flying Dutchman Jolly Roger Neptune OD Old Glory Poseidon Rocky Mountain canary Star-Spangled Banner Stars and Stripes Union Flag Union Jack Varuna able seaman able-bodied seaman ace and blue ass baluster balustrade banderole banister banner banneret base best bower black flag blue ensign bluejacket blunt boodle bower brass bread buccaneer bucks bunting burgee burro cabbage cards caryatid cash chips clubs coachwhip coin colonnade color colors column crab crane cuddy dado deck deep-sea man derrick deuce diamonds dickey die dinero donkey dough dummy ensign erector face cards fair-weather sailor fisherman flag flush footstalk forklift full house gantry crane gelt gilt gonfalon gonfanon grease green green stuff greenbacks guidon hand hearts hearty hoist house flag hydraulic tailgate jack afloat jack-tar jackass jackscrew jacky jennet jenny jenny ass joker kale king knave left bower lever lift lifter limey lobsterman long pennant mariner matelot mazuma merchant flag money moolah mopus national flag navigator neddy newel-post oil of palms ointment oof ooftish oriflamme pack pair pedestal pedicel peduncle pendant pennant pennon pennoncel picture cards pier pilaster pile piling pillar pirate playing cards plinth pole post privateer queen queen-post red red ensign rhino rocks round royal flush royal standard rubber ruff sailor salt scratch sea dog sea rover seafarer seafaring man seaman shaft shekels shipman signal flag simoleons singleton socle spades spondulics staff stalk stanchion stand standard stem straight streamer subbase sugar surbase swallowtail tackle tar tarpaulin the needful tin trey trick tricolor trump trunk upright vexillum viking wampum water dog whaler white windjammer windlass windsailor


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