IPA: dʒˈæk


  • A coarse mediaeval coat of defence, especially one made of leather.
  • A man.
  • (chiefly capitalized) A name applied to a hypothetical or typical man.
  • (countable, now chiefly US) A man, a fellow; a typical man; men in general.
  • (colloquial) A sailor.
  • (slang) A policeman or detective; (Australia) a military policeman.
  • (now rare) A manual laborer.
  • (Canada, US, colloquial) A lumberjack.
  • (India, historical, slang) A sepoy.
  • A device or utensil.
  • A device for turning a spit; a smokejack or roasting jack.
  • Each of a series of blocks in a harpsichord or the earlier virginal, communicating the action of the key to the quill; sometime also, a hopper in a modern piano.
  • (obsolete) A support for wood being sawn; a sawhorse or sawbuck.
  • A device used to hold a boot by the heel, to assist in removing the boot.
  • 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.
  • 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.
  • (mining, now rare) A wedge for separating rocks rent by blasting.
  • (obsolete) A grating device used to separate and guide the threads in a warping machine; a heck box.
  • (obsolete) A machine for twisting the sliver as it leaves a carding machine, in the preparation of yarn.
  • (electronics) A switch for a jack plug, a jackknife switch; (more generally) a socket used to connect a device to a circuit, network etc.
  • A non-tool object or thing.
  • (now historical, regional) A pitcher or other vessel for holding liquid, especially alcoholic drink; a black-jack.
  • (card games, originally colloquial) The lowest court card in a deck of standard playing cards, ranking between the 10 and queen, with an image of a knave or pageboy on it.
  • (bowls) A small, typically white, ball used as the target ball in bowls; a jack-ball.
  • (nautical) A small ship's flag used as a signal or identifying device; a small flag flown at the bow of the vessel.
  • (UK, regional, now rare, historical) A measure of liquid corresponding to a quarter of a pint.
  • (obsolete, slang) A fake coin designed to look like a sovereign.
  • (nautical, now rare, historical) A jack crosstree.
  • (games) A small, six-pointed playing piece used in the game of jacks.
  • (US) A torch or other light used in hunting to attract or dazzle game at night.
  • (slang, chiefly US) Money.
  • (Canada, US) A strong alcoholic liquor, especially home-distilled or illicit.
  • (colloquial, euphemistic) Nothing, jack shit.
  • (cricket, slang) The eleventh batsman to come to the crease in an innings.
  • (slang, Appalachians) A smooth often ovoid large gravel or small cobble in a natural water course.
  • A plant or animal.
  • A pike, especially when young.
  • (chiefly US) A male ass, especially when kept for breeding.
  • Any of the marine fish in the family Carangidae.
  • (US) A jackrabbit.
  • A large California rockfish, the bocaccio, Sebastes paucispinis.
  • Mangifera caesia, related to the mango tree.
  • (colloquial) Plant in the genus Arisaema, also known as Jack-in-the-pulpit, and capitalized Jack.
  • (colloquial) Spadix of a plant (also capitalized Jack).
  • (apparently does not occur standalone for the genus per se) Plant of the genus Emex, also considered synonymous to Rumex, if not then containing two species lesser jack and little jack for Emex spinosa syn. Rumex spinosus, Australian English three-corner jack and prickly jack for Emex australis syn. Rumex hypogaeus.
  • The edible fruit of the Asian tree (Artocarpus heterophyllus); also the tree itself.
  • The related tree Mangifera caesia.
  • (slang, baseball) A home run.
  • A male given name from Hebrew, also used as a pet form of John or more rarely, Jacob.
  • A surname.
  • (colloquial) Jack Daniel's, a brand of Tennessee whiskey.
  • An unincorporated community in Coffee County, Alabama, United States.
  • An unincorporated community in Dent County, Missouri, United States.
  • (informal) A placeholder or conventional name for any man, particularly a younger, lower-class man.
  • A jacqueminot rose.
  • (informal, archaic) Ellipsis of Jack Tar., a sailor.
  • (informal, archaic) Ellipsis of Jack Rum., a soldier.


  • (transitive) To physically raise using a jack.
  • (transitive) To raise or increase.
  • To increase the potency of an alcoholic beverage similarly to distillation by chilling it to below the freezing point of water, removing the water ice crystals that form, and leaving the still-liquid alcoholic portion.
  • (transitive, colloquial) To steal (something), typically an automobile; to rob (someone).
  • (intransitive) To dance by moving the torso forward and backward in a rippling motion.
  • (colloquial, vulgar) To jack off, to masturbate.
  • (transitive, slang, baseball) To hit (the ball) hard; especially, to hit (the ball) out of the field, producing a home run.


  • (Australia) Tired, disillusioned; fed up (with).

Examples of "jack" in Sentences

  • Jack rode on the ship.
  • The captain tried to save the jack.
  • Is the power jack in the laptop loose
  • The is under the direction of Jack Hart.
  • Jack and support the front of the vehicle.
  • Jack believed in the power of the community.
  • Besides, Jack is a notorious domesticity for John
  • Drachma is the captain of the small fishing airship, 'Little Jack'.
  • In his slumber, Jack dreams that he is the young Jack of the fairy tale.
  • Jack was a hardworking child and became a newsboy amongst other small jobs.
  • You would think that since the jack is the same the requirements are the same.
  • I felt sure it wasn't any sort of craft, but I had heard of strange lights being seen at times on the water -- what they call jack-o'-lanterns, I believe, sir.
  • The portions of the operator's talking circuit that are located permanently in the switchboard cabinet are in such cases terminated in a jack, called an operator's _cut-in jack_.
  • And so she proved, in small things at first, as translator, courier, embassy bricoleur - what you call jack-of-all-trades - and later as secret agent in the field ... and you know what that means.
  • "You cannot become an expert if one day you work in maternity, the other day you work in the long-term care, and then you are in emergency room," she said, referencing the phrase "jack of all trades, master of none."
  • Bellinger recommends choosing one topic to focus on -- "the expression 'jack of all trades, master of none' holds true especially in the Web 2.0 world" -- and working on engaging with the top people in that area rather than trying to tackle all the world's problems at once.

Related Links

syllables in jacksynonyms for jackrhymes for jackdescribing words for jackunscramble jack



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