Definition of jacket in English:

jacket

noun

  • 1An outer garment extending either to the waist or the hips, typically having sleeves and a fastening down the front.

    • ‘The 10 are then trained to operate speed guns identical to those used by police and kitted out with official-looking high-visibility jackets.’
    • ‘At the time he had a goatee beard and was wearing a waist length jacket with maroon coloured sleeves, dark coloured jeans and dark coloured footwear.’
    • ‘He unbuttoned the tuxedo jacket and rolled the sleeves to his elbows.’
    • ‘He misjudged her reaction, and removed his leather jacket, enveloping her shoulders with it.’
    • ‘Like jean jackets, your jeans can be worn with multiple tops and shoe styles.’
    • ‘Get ready for the heat with the latest in outerwear; from trench coats to suede jackets.’
    • ‘The key here is to get her something between a jacket and a blazer that she can just throw on with any outfit.’
    • ‘Joy removed the matching boutonnière from its clear plastic container and pinned it on the lapel of his tuxedo jacket.’
    • ‘The mystery caller was stocky and dressed in a blouson jacket and a baseball cap.’
    • ‘Romanov pulled out a file folder from her jacket slowly, ensuring that the bodyguards saw what she held, and handed it to Mr. Devlin.’
    • ‘Jean grabs him by the lapel of his tuxedo jacket and narrows her green eyes at him.’
    • ‘Jean skirts, jean jackets, and all lengths and styles of jeans can give your wardrobe great variety!’
    • ‘The jackets are skillfully constructed, whether impeccable blazers or little jackets with bouffant sleeves.’
    • ‘For evening, her navy tuxedo jacket has satin trim on the collar, pocket and sleeves, and is a modern twist on a classic design.’
    • ‘From leather jackets and blazers, to pants, yes, pants, learn to look stylish in the latest trend.’
    • ‘The popular lengths for jackets this fall are waist length, three-quarter length and trench coat length.’
    • ‘I reached into the front pocket of my jacket and took out a small business card.’
    • ‘Often featuring a snap front and drawstring waist, this jacket maybe lined or unlined.’
    • ‘Damian pulled out an envelope from his jacket and sat across from Stephanie, his other hand still holding onto her delicate fingers.’
    • ‘Suspicions were raised when a chamber maid saw documents in his jacket which contradicted his story.’
    1. 1.1 An outer covering, especially one placed around a tank or pipe to insulate it.
      • ‘If your water heater is located in an unheated space, bundle it up with an insulating jacket.’
      • ‘Similarly, a steel and concrete jacket was secured to the swing span central pier in 1936.’
      • ‘Bosch designed a thin inner liner of soft steel that sealed the gases in, its pressure load supported by a stout perforated steel jacket.’
      • ‘Install an insulating jacket around the hot water heater to improve its heat retention capability.’
      • ‘If you have a conventional water heater, give it a wrap as well with an insulated jacket that will help prevent energy loss.’
      wrapping, wrapper, wrap, sleeve, sheath, sheathing, envelope, cover, covering
      View synonyms
    2. 1.2 A metal casing for a bullet.
      • ‘One of the reasons is that good match bullets often have thin jackets which can be more uniform and concentric.’
      • ‘The bullet was produced with a cupro-nickel jacket over a lead core.’
      • ‘I test fired the Robar 228 with a wide variety of full metal jacket and hollow-point loads to test for reliability.’
      • ‘In 1948, the Nosler Partition Bullet Co. formed to make bullet jackets turned out one at a time on a lathe.’
      • ‘The idea of an EFMJ is a bullet whose jacket is weakened from the inside so that it splits open on contact with a target.’
    3. 1.3 The skin of a potato.
      ‘potatoes cooked in their jackets’
      • ‘All we ate every day was a piece of black bread and three potatoes cooked in their jackets.’
      • ‘New season potatoes, baked in their jackets and dressed ever so slightly with olive oil are the best possible accompaniment to properly cooked burgers and a green salad.’
      • ‘What next, said the Herald, oranges with no peel, potatoes without jackets?’
    4. 1.4 The dust jacket of a book.
      • ‘You may not have heard of House Industries, but you will undoubtedly have seen their work, be it on book jackets, CD covers or in the typography of advertising.’
      • ‘This week's review is a hard cover book with a hard-hitting jacket, determined to catch your attention.’
      • ‘Chris Moore lives in another world - but it's all in a day's work for the artist whose illustrations have been used on the book jackets of some of the world's top authors.’
      • ‘The atmosphere is literary, with the walls covered in huge posters of book jackets of American literary masterpieces.’
      • ‘A selection of books are on display with a summary of the story covering the book jacket.’
      wrapping, wrapper, wrap, sleeve, sheath, sheathing, envelope, cover, covering
      View synonyms
    5. 1.5 A record sleeve.
      • ‘Nelly nodded looking over my shoulder at the titles on the jackets of the records.’
      • ‘Record jackets of all types lined the walls and memorabilia from the rock and roll era filled the many shelves all around the establishment.’
      • ‘While I gazed at walls decorated with faded record jackets, the owner enthralled me with his in-depth knowledge of this musical genre.’
      wrapping, wrapper, wrap, sleeve, sheath, sheathing, envelope, cover, covering
      View synonyms
    6. 1.6 A steel frame fixed to the seabed, forming the support structure of an oil production platform.

verb

[WITH OBJECT]
  • Cover with a jacket.

    • ‘For cladding-pumped laser experiments, some preforms have been jacketed with a second quartz glass tube in order to increase the cladding-core relation.’
    • ‘Old stoves have been jacketed and furnaces put in. Artificial lighting systems have been installed.’
    • ‘While most bullets have been jacketed with copper-zinc alloy, a variety of other hard metals, including tungsten, have been used.’

Origin

Late Middle English: from Old French jaquet, diminutive of jaque (see jack).

Pronunciation

jacket

/ˈjakət//ˈdʒækət/