noun:

1. A jack crosstree..
2. A man, a fellow; a typical man; men in general.
3. A lumberjack.
4. A Jack Tar, a sailor.
5. A device for turning a spit; a smokejack or roasting jack.
6. A pike, especially when young.
7. A name applied to a hypothetical or typical man.
8. A fake coin designed to look like a sovereign.
9. A small, typically white, ball used as the target ball in bowls; a jack-ball.
10. A wedge for separating rocks rent by blasting.
11. The eleventh batsman to come to the crease in an innings.
12. A home run.
13. A jacqueminot rose.
14. A mechanical device used to raise and (temporarily) support a heavy object, now especially to lift one side of a motor vehicle when (e.g.) changing a tyre.
15. A device used to hold a boot by the heel, to assist in removing the boot.
16. A jackrabbit.
17. A large California rockfish, the bocaccio, Sebastes paucispinis.
18. Any of various levers for raising or lowering the sinkers which push the loops down on the needles in a knitting machine or stocking frame.
19. A device or utensil.
20. Nothing, jack shit.
21. A placeholder or conventional name for any man, particularly a younger, lower-class man.
22. A small ship's flag used as a signal or identifying device; a small flag flown at the bow of the vessel.
23. The edible fruit of the Asian tree (Artocarpus heterophyllus); also the tree itself.
24. A plant or animal.
25. Mangifera caesia, related to the mango tree.
26. The lowest court card, ranking between the 10 and queen, with an image of a knave or pageboy on it; a knave.
27. A manual laborer.
28. A coarse mediaeval coat of defence, especially one made of leather.
29. Each of a series of blocks in a harpsichord or the earlier virginial, communicating the action of the key to the quill; sometime also, a hopper in a modern piano.
30. A sailor.
31. A policeman or detective; a military policeman.
32. A non-tool object or thing.
33. A man.
34. Any of the marine fish in the family Carangidae.
35. A measure of liquid corresponding to a quarter of a pint.
36. A small, six-pointed playing piece used in the game of jacks.
37. A male ass, especially when kept for breeding.
38. A machine for twisting the sliver as it leaves a carding machine, in the preparation of yarn.
39. A Jack Rum, a soldier.
40. A pitcher or other vessel for holding liquid, especially alcoholic drink; a black-jack.
41. A grating device used to separate and guide the threads in a warping machine; a heck box.
42. A switch for a jack plug, a jackknife switch; a socket used to connect a device to a circuit, network etc.
43. Money.
44. A support for wood being sawn; a sawhorse or sawbuck.
45. A smooth often ovoid large gravel or small cobble in a natural water course.
46. A torch or other light used in hunting to attract or dazzle game at night.

verb:

1. To steal something, typically an automobile. Shortened form of carjacking.
2. To produce by freeze distillation; to distil (an alcoholic beverage) by freezing it and removing the ice (which is water), leaving the alcohol (which remains liquid).
3. To raise or increase.
4. To dance by moving the torso forward and backward in a rippling motion.
5. To raise using a jack.
6. To jack off, to masturbate.
7. To hit (the ball) hard; especially, to hit (the ball) out of the field, producing a home run.

name:

1. A surname​.
2. A male given name from Hebrew, also used as a pet form of John.
3. Jack Daniel's, a brand of American whiskey.

adjective:

1. Tired, disillusioned; fed up (with).