jacket

American  

[jak-it] / ˈdʒæk ɪt /

noun

1. a short coat, in any of various forms, usually opening down the front.

2. something designed to be placed around the upper part of the body for a specific purpose other than use as clothing.

   a life jacket.

3. a protective outer covering.

4. the skin of a potato, especially when it has been cooked.

5. book jacket.

6. the cover of a paperbound book, usually bearing an illustration.

7. a paper or cardboard envelope for protecting a phonograph record.

8. a metal casing, as the steel covering of a cannon, the steel cover around the core of a bullet, or the water jacket on certain types of machine guns.

9. a folded paper or open envelope containing an official document.

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verb (used with object)

1. to put a jacket on (someone or something).

jacket British  

/ ˈdʒækɪt /

noun

1. a short coat, esp one that is hip-length and has a front opening and sleeves

2. something that resembles this or is designed to be worn around the upper part of the body

   a life jacket

3. any exterior covering or casing, such as the insulating cover of a boiler

4. the part of the cylinder block of an internal-combustion engine that encloses the coolant

5. See dust jacket

6. 1. the skin of a baked potato

   2. ( as modifier )

      jacket potatoes

7. a metal casing used in certain types of ammunition

8. Brit name: sleeve.  a cover to protect a gramophone record

9. a folder or envelope to hold documents

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verb

1. (tr) to put a jacket on (someone or something)

Other Word Forms

• jacket-like adjective
• jacketed adjective
• jacketless adjective
• jacketlike adjective
• underjacket noun
• unjacketed adjective

Etymology

Origin of jacket

1425–75; late Middle English jaket < Middle French ja ( c ) quet, equivalent to jaque jack ⁴ + -et -et

Example Sentences

"When the economy grows, we hire more people," he said, sporting his signature black leather jacket.

From Barron's

I thought Alex was pretty cute in his light maroon jacket — the kind that’s perfect for those May gray evenings and one that highlighted his wispy blond hair.

From Los Angeles Times

“The amount of computing necessary for AI is skyrocketing,” Huang told the Las Vegas audience Monday afternoon, pacing the stage wearing a shiny black jacket in a crocodile-scale pattern.

From The Wall Street Journal

Wearing his trademark black leather jacket, Huang told an audience of hundreds that the project has taught Nvidia "an enormous amount" about how to help partners build robotic systems.

From BBC

And a thick insulating jacket for your boiler could save about £183 a year.

From BBC

Related Words

• coat
• fur
• parka
• sheath
• tunic