jack·​et | \ˈja-kət \

Definition of jacket 

(Entry 1 of 2)

1a : a garment for the upper body usually having a front opening, collar, lapels, sleeves, and pockets

b : something worn or fastened around the body but not for use as clothing

2a(1) : the natural covering of an animal

(2) : the fur or wool of a mammal

b : the skin of a potato

3 : an outer covering or casing: such as

a(1) : a thermally nonconducting cover

(2) : a covering that encloses an intermediate space through which a temperature-controlling fluid circulates

(3) : a tough cold-worked metal casing that forms the outer shell of a built-up bullet

b(1) : a wrapper or open envelope for a document

(2) : an envelope for enclosing registered mail during delivery from one post office to another

c(1) : a detachable protective cover for a book

(2) : a paper or cardboard envelope for a phonograph record


jacketed; jacketing; jackets

Definition of jacket (Entry 2 of 2)

transitive verb

: to put a jacket on : enclose in or with a jacket

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Other Words from jacket


jacketless \-​ləs \ adjective

Examples of jacket in a Sentence


a suit with a double-breasted jacket slip the art book into its jacket so it won't get dirty

Recent Examples on the Web: Noun

The jacket zips up into a high-neck collar, all the better to actually wear it outside this winter. Buy it: $70, reebok.com 4. Leah Prinzivalli, SELF, "Cardi B Partnered With Reebok—Here Are 6 Ways to Get Her Throwback '90s Look," 9 Nov. 2018 Add a leather jacket, grey T-shirt, jeans, and black combat boots — all of which happen to be fall staples. Cameron Glover, Allure, "11 Halloween Costumes That You Can Do With Just a Wig," 9 Oct. 2018 The Southsiders live in Sunnyside Trailer Park (until recently), wear leather jackets, and have undying loyalty for each other. Carolyn Twersky, Seventeen, "Riverdale Quiz: Are You A Southside Serpent or a Northsider?!," 5 Oct. 2018 Specifically, the jacket distributes up to 25 oz. of water around its internal powder skirt, so the liquid wraps a wearer’s center of gravity. Tim Newcomb, Popular Mechanics, "The Winter Jacket That’s Also a Water Bottle," 1 Oct. 2018 Manafort’s alleged money laundering landed in a number of different goods and services, including the now-famous ostrich jacket. Jeff Andrews, Curbed, "Why financial criminals use real estate to launder money," 10 Aug. 2018 As for the cool leather jacket President Obama wore in March, channeling his law school style? Caroline Hallemann, Town & Country, "Here's What Barack Obama Is Doing Now," 16 July 2018 Kerry Kennedy’s daughter Mariah Kennedy Cuomo also posted a photo to Instagram of herself and cousin Noah Kennedy wearing the jackets. Kevin Slane, BostonGlobe.com, "Kennedy family wears jackets protesting Trump immigration policy at Fourth of July parade," 5 July 2018 The Justice League actor, 45, dressed casually for the family outing, wearing a leather jacket, dark t-shirt, jeans and sneakers. Maria Pasquini, PEOPLE.com, "Double Date! Ben Affleck Was in a 'Great Mood' While Bonding with Lindsay Shookus' Parents: Source," 24 June 2018

Recent Examples on the Web: Verb

Townes told reporters that Porter Moser, the checker-jacketed, square-jawed coach of the Ramblers, asked his players to keep their heads held high in his postgame speech. Jeff Greer, The Courier-Journal, "When the tears dried, Loyola realized its place in college basketball lore," 31 Mar. 2018 Restaurant kitchens offered him the chance to work with ingredients and equipment that weren’t available to him at home, like black truffles or a steam jacketed kettle. Nancy Miller, The Courier-Journal, "Simple and good flavors are trending in the Mesh kitchen. Try your hand at these recipes!," 19 Dec. 2017 The company is straight-jacketed by the government’s insistence on a financial return from the network, even though as a wholesaler NBN Co. can’t sell directly to the public and set the final price of a connection. Angus Whitley, Bloomberg.com, "Australia Has Slower Internet Than Kenya, Russia and Hungary," 4 Oct. 2017 These outspoken pals, known collectively as The Chauvinists, include a retired Army colonel, a French philosophy student, a leather-jacketed rowdy named Fast Eddie and an elderly fisherman. Christopher Arnott, courant.com, "One-Man Comedy Show 'Male Intellect' Appeals To Specific Audience," 25 Sep. 2017 The scuba-like little white dress was complete with a moto collar reminiscent of the biker jackets worn by stylish women all over the French capital. Edward Barsamian, Vogue, "Melania Trump and Brigitte Macron Have Entirely Opposite Takes on French Style in Paris," 13 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'jacket.' 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 jacket


15th century, in the meaning defined at sense 1a


1856, in the meaning defined above

History and Etymology for jacket


Middle English jaket, from Anglo-French jackés, plural, diminutive of Middle French jaque short jacket, from jacques peasant, from the name Jacques James

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Statistics for jacket

Last Updated

9 Dec 2018

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Time Traveler for jacket

The first known use of jacket was in the 15th century

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More Definitions for jacket


jack·​et | \ˈja-kət \

Kids Definition of jacket

1 : a short coat

2 : an outer cover or casing a book jacket


jack·​et | \ˈjak-ət \

Medical Definition of jacket 

1 : a rigid covering that envelops the upper body and provides support, correction, or restraint



Legal Definition of jacket 

: a standard insurance policy to which other coverage or exclusions may be attached

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More from Merriam-Webster on jacket

Rhyming Dictionary: Words that rhyme with jacket

Thesaurus: All synonyms and antonyms for jacket

Spanish Central: Translation of jacket

Nglish: Translation of jacket for Spanish Speakers

Britannica English: Translation of jacket for Arabic Speakers

Comments on jacket

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having a pattern of small flowers

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