noun jack·et \ˈja-kət\

Definition of JACKET

a :  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
a (1) :  the natural covering of an animal (2) :  the fur or wool of a mammal
b :  the skin of a potato
:  an outer covering or casing: 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
jack·et·less \-ləs\ adjective

Examples of JACKET

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

Origin of JACKET

Middle English jaket, from Anglo-French jackés, plural, diminutive of Middle French jaque short jacket, from jacques peasant, from the name Jacques James
First Known Use: 15th century

Rhymes with JACKET



Definition of JACKET

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

First Known Use of JACKET


Rhymes with JACKET

JACKETLESS Defined for Kids


noun jack·et \ˈja-kət\

Definition of JACKET for Kids

:  a short coat
:  an outer cover or casing <a book jacket>
Medical Dictionary


noun jack·et \ˈjak-ət\

Medical Definition of JACKET

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


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