Jack vs. Knave

Jacknoun

A mechanical device used to raise and (temporarily) support a heavy object, e.g. screw jack, scissor jack, hydraulic jack, ratchet jack, scaffold jack.

‘She used a jack to lift her car and changed the tire.’;

Knavenoun

(archaic) A boy; especially, a boy servant.

Jacknoun

A man or men in general.

‘Every man jack.’;

Knavenoun

(archaic) Any male servant; a menial.

Jacknoun

A male animal.

Knavenoun

A tricky, deceitful fellow; a dishonest person.

Jacknoun

A male ass.

Knavenoun

(cards) A playing card marked with the figure of a servant or soldier; a jack.

Jacknoun

(card games) A playing card with the letter "J" and the image of a knave or prince on it, the eleventh card in a given suit. Also called a knave.

Knavenoun

A boy; especially, a boy servant.

‘O murderous slumber,Lay'st thou thy leaden mace upon my boyThat plays thee music ? Gentle knave, good night.’;

Jacknoun

The eleventh batsman to come to the crease in an innings.

Knavenoun

Any male servant; a menial.

‘He's but Fortune's knave,A minister of her will.’;

Jacknoun

(slang) A detective.

Knavenoun

A tricky, deceitful fellow; a dishonest person; a rogue; a villain.

‘In defiance of demonstration, knaves will continue to proselyte fools.’;

Jacknoun

(archaic) A knave (a servant or later, a deceitful man).

Knavenoun

A playing card marked with the figure of a servant or soldier; a jack; as, the knave of hearts.

Jacknoun

(sports) A target ball in bowls, etc; a jack-ball.

Knavenoun

a deceitful and unreliable scoundrel

Jacknoun

(games) A small, six-pointed playing piece used in the game of jacks.

Knavenoun

one of four face cards in a deck bearing a picture of a young prince

Jacknoun

Nothing, jack shit.

‘You haven't done jack. Get up and get this room cleaned up right now!’;

Knavenoun

a dishonest or unscrupulous man.

Jacknoun

(nautical) A small flag at the bow of a ship.

Knavenoun

(in cards) a jack.

Jacknoun

(nautical) A naval ensign flag flown from the main mast, mizzen mast, or the aft-most major mast of (especially) British sailing warships; Union Jack.

Jacknoun

(military) A coarse and cheap medieval coat of defense, especially one made of leather.

Jacknoun

A penny with a head on both sides, used for cheating.

Jacknoun

(slang) Money.

Jacknoun

A smooth often ovoid large gravel or small cobble in a natural water course.

Jacknoun

Mangifera caesia, related to the mango tree.

Jacknoun

The freshwater pike, green pike or pickerel.

Jacknoun

A large California rockfish, the bocaccio, Sebastes paucispinis.

Jacknoun

Any of the marine fish in the family Carangidae.

Jacknoun

A sailor, a jacktar.

Jacknoun

(obsolete) A pitcher or can of waxed leather, supposed to resemble a jackboot; a black-jack.

Jacknoun

A drinking measure holding half a pint or, sometimes, a quarter of a pint.

Jacknoun

A mechanical contrivance, an auxiliary machine, or a subordinate part of a machine.

Jacknoun

A device to pull off boots.

Jacknoun

A sawhorse or sawbuck.

Jacknoun

A machine for turning a spit; a smokejack.

Jacknoun

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

Jacknoun

A lever for depressing the sinkers which push the loops down on the needles in a knitting machine.

Jacknoun

A grating to separate and guide the threads in a warping machine; a heck box.

Jacknoun

A machine for twisting the sliver as it leaves the carding machine.

Jacknoun

A compact, portable machine for planing metal.

Jacknoun

A machine for slicking or pebbling leather.

Jacknoun

A system of gearing driven by a horse power, for multiplying speed.

Jacknoun

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

Jacknoun

In the harpsichord, an intermediate piece communicating the action of the key to the quill; also called hopper.

Jacknoun

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

Jacknoun

(nautical) A bar of iron athwart ships at a topgallant masthead, to support a royal mast, and give spread to the royal shrouds; also called jack crosstree.

Jacknoun

A surface-mounted connector for electrical, especially telecommunications, equipment.

‘telephone jack’;

Jacknoun

Female ended electrical connector (see Electrical connector)

Jacknoun

Electrical connector in a fixed position (see Gender of connectors and fasteners)

Jacknoun

A home run.

Jacknoun

A coarse mediaeval coat of defence, especially one made of leather.

Jackverb

(transitive) To use a jack.

‘He jacked the car up so that he could replace the brake pads.’;

Jackverb

(transitive) To raise or increase.

‘If you want to jack your stats you just write off failures as invalid results.’;

Jackverb

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).

Jackverb

To steal something, typically an automobile. Shortened form of carjacking.

‘Someone jacked my car last night!’;

Jackverb

(intransitive) To dance by moving the torso forward and backward in a rippling motion.

Jackverb

To hit (the ball) hard; especially, to hit (the ball) out of the field, producing a home run.

Jackadjective

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

Jacknoun

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.

Jacknoun

A familiar nickname of, or substitute for, John.

‘You are John Rugby, and you are Jack Rugby.’;

Jacknoun

An impertinent or silly fellow; a simpleton; a boor; a clown; also, a servant; a rustic.

‘Since every Jack became a gentleman,There 's many a gentle person made a Jack.’;

Jacknoun

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

Jacknoun

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

Jacknoun

A portable machine variously constructed, for exerting great pressure, or lifting or moving a heavy body such as an automobile 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.

Jacknoun

The small bowl used as a mark in the game of bowls.

‘Like an uninstructed bowler who thinks to attain the jack by delivering his bowl straight forward upon it.’;

Jacknoun

The male of certain animals, as of the ass.

Jacknoun

A young pike; a pickerel.

Jacknoun

A drinking measure holding half a pint; also, one holding a quarter of a pint.

Jacknoun

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.

Jacknoun

The knave of a suit of playing cards.

Jacknoun

A game played with small (metallic, with tetrahedrally oriented spikes) objects (the jacks(1950+), formerly jackstones) that are tossed, caught, picked up, and arranged on a horizontal surface in various patterns; in the modern American game, the movements are accompanied by tossing or bouncing a rubber ball on the horizontal surface supporting the jacks. same as jackstones.

Jacknoun

Money.

Jacknoun

Apple jack.

Jacknoun

Brandy.

Jacknoun

A coarse and cheap mediæval coat of defense, esp. one made of leather.

‘Their horsemen are with jacks for most part clad.’;

Jacknoun

A pitcher or can of waxed leather; - called also black jack.

Jackverb

To hunt game at night by means of a jack. See 2d Jack, n., 4, n.

Jackverb

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

Jacknoun

a small worthless amount;

‘you don't know jack’;

Jacknoun

a man who serves as a sailor

Jacknoun

someone who works with their hands; someone engaged in manual labor

Jacknoun

immense East Indian fruit resembling breadfruit of; its seeds are commonly roasted

Jacknoun

an electrical device consisting of a connector socket designed for the insertion of a plug

Jacknoun

game equipment consisting of one of several small objects picked up while bouncing a ball in the game of jacks

Jacknoun

small flag indicating a ship's nationality

Jacknoun

one of four face cards in a deck bearing a picture of a young prince

Jacknoun

tool for exerting pressure or lifting

Jacknoun

any of several fast-swimming predacious fishes of tropical to warm-temperate seas

Jacknoun

male donkey

Jackverb

lift with a special device;

‘jack up the car so you can change the tire’;

Jackverb

hunt with a jacklight