jack

noun
\ ˈjak How to pronounce jack (audio) \
plural jacks

Definition of jack

 (Entry 1 of 2)

1a jacks plural in form but singular in construction : a game played with a set of small objects that are tossed, caught, and moved in various figures
b : a small 6-pointed metal object used in the game of jacks
2a : a playing card carrying the figure of a soldier or servant and ranking usually below the queen
3 : any of various usually mechanical devices: such as
a : a usually portable mechanism or device for exerting pressure or lifting a heavy body a short distance
b : a device for turning a spit
4 : a female fitting in an electric circuit used with a plug to make a connection with another circuit
5a : man usually used as an intensive in such phrases as every man jack
b often capitalized : sailor
c(1) : servant, laborer
(2) : lumberjack
6 : something that supports or holds in position: such as
a : an iron bar at a topgallant masthead to support a royal mast and spread the royal shrouds
b : a wooden brace fastened behind a scenic unit in a stage set to prop it up
7a : any of several fishes especially : any of various carangids
b : a male donkey
d : any of several birds (such as a jackdaw)
8a : a small white target ball in lawn bowling
b : a small national flag flown by a ship
9 slang : money
10a : applejack
b : brandy
13 US slang : anything at all used in negative constructions In short, Dinger or Homer or whoever it was who wrote the Odyssey didn't know jack about travel.— Steve Rushin

jack

verb
jacked; jacking; jacks

Definition of jack (Entry 2 of 2)

transitive verb

1a : to move or lift by or as if by a jack
b : to raise the level of usually used with up jack up the price
c : to take to task
2 : to hunt or fish for at night with a jacklight

intransitive verb

: to hunt or fish at night with a jacklight

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Other Words from jack

Verb

jacker noun

Synonyms for jack

Synonyms: Noun

bread [slang], bucks, cabbage [slang], cash, change, chips, coin, currency, dough, gold, green, kale [slang], legal tender, lolly [British], long green [slang], loot, lucre, money, moola (or moolah) [slang], needful, pelf, scratch [slang], shekels (also sheqels), tender, wampum

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Examples of jack in a Sentence

Noun

I'd buy that watch, but I don't have the jack right now. a Portuguese ship flying the national jack

Recent Examples on the Web: Noun

One other thing that was indicated in these renders: Samsung is keeping the headphone jack! Ron Amadeo, Ars Technica, "Samsung Galaxy S10 renders feature a big hole in the display," 5 Dec. 2018 Tim Anderson has three jacks while carrying a .269/.367/.615 slash line. Si.com Staff, SI.com, "Nine Innings: Inside Ohtani's Electric Debut, Masahiro Tanaka's Resurgence and Ranking the Most Surprising Starts to 2018," 9 Apr. 2018 Many phones don’t have 3.5mm headphone jacks, so make sure yours does. Jeffrey Van Camp, WIRED, "The 4 Best Smartphones Money Can Buy in 2018," 9 Apr. 2018 Lateral lunge Plank jack Hammer curl Rest 1 minute. Amy Marturana, SELF, "25-Minute Total-Body Dumbbell Workout," 8 Mar. 2019 There's also a headphone jack, USB-C port, and a microSD slot. Ron Amadeo, Ars Technica, "Moto G7 Play pops up at the FCC with notch design, dramatically smaller battery," 27 Nov. 2018 Larry was a very talented and self-taught jack of all trades. Hartford Courant, courant.com, "Lawrence E. Guillemette," 20 June 2018 Anglers are allowed two salmon a day, one of which may be a jack. sacbee, "Fishing line: Sacramento River sees plenty of stripers and shad | The Sacramento Bee," 30 Apr. 2018 Madeline Carroll is a jack of all trades, and master of all! Nicole Sands, PEOPLE.com, "I Can Only Imagine," 21 Mar. 2018

Recent Examples on the Web: Verb

In this case that meant the likes of feather-light cakes of local Jonah crabmeat, bound with artichoke, and jacked up with tangy celeriac slaw. Alexandra Hall, BostonGlobe.com, "At the heart of Woodfords Corner’s revival is this: ‘You don’t get very many opportunities in life to do what you really believe in’," 26 June 2018 But when a character put the headset on and entered another character’s consciousness, the aspect ratio widen to 70mm and the frame rate would jack up to 60: Everything would seem bigger, crisper, hyperreal. Eleanor Hildebrandt, Popular Mechanics, "The True Story of the Lost Sci-Fi Movie "Brainstorm," Natalie Wood’s Last Film," 21 Dec. 2018 Taxi drivers won’t rip you off, and no one will jack up the price at a restaurant or shop. Sarah Souli, Condé Nast Traveler, "Kosovo Is an All-Night Party—And Shows No Signs of Slowing Down," 26 Oct. 2018 Adding sweeteners, cream, and other mix-ins can quickly jack up the total. Caroline Picard, Good Housekeeping, "21 Surprising Coffee Facts That Will Perk Up Your Afternoon," 3 Dec. 2018 Shaft drive on some motorcycles can produce a clunky, jacking effect in the driveline, but the Ryker was easy. Ben Stewart, Popular Mechanics, "8 Cool Things About the Can-Am Ryker," 13 Nov. 2018 Does jacking up rents fit UCSC’s mission of keeping young companies in Philadelphia? Joseph N. Distefano, Philly.com, "Big rent hikes could force out labs and biotech start-ups at University City Science Center," 31 May 2018 Most of the time with these one-way sales, return flight prices are jacked way up, but departing and return flights from San Juan cost the same in Southwest's sale. Bridget Hallinan, Condé Nast Traveler, "Southwest Airlines Three Day Sale: One-Way Tickets from $49," 2 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'jack.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of jack

Noun

1548, in the meaning defined at sense 5a

Verb

circa 1833, in the meaning defined at intransitive sense

History and Etymology for jack

Noun

Middle English Jacke, familiar term of address to a social inferior, nickname for Johan John

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Statistics for jack

Last Updated

6 Apr 2019

Look-up Popularity

Time Traveler for jack

The first known use of jack was in 1548

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More Definitions for jack

jack

noun

English Language Learners Definition of jack

: a device used for lifting something heavy (such as a car)
: a playing card that has a picture of a soldier or servant and that is worth more than a ten and less than a queen
: a small opening where something connects with a wire to something else

jack

noun
\ ˈjak How to pronounce jack (audio) \

Kids Definition of jack

 (Entry 1 of 2)

1 : a device for lifting something heavy a short distance
2 : a playing card with the picture of a young man
3 : a small six-pointed usually metal object used in a children's game ( jacks )
4 : a socket used with a plug to connect one electric circuit with another

jack

verb
jacked; jacking

Kids Definition of jack (Entry 2 of 2)

: to move or lift with a special device We need to jack up the car.

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More from Merriam-Webster on jack

Rhyming Dictionary: Words that rhyme with jack

Thesaurus: All synonyms and antonyms for jack

Spanish Central: Translation of jack

Nglish: Translation of jack for Spanish Speakers

Britannica English: Translation of jack for Arabic Speakers

Britannica.com: Encyclopedia article about jack

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