- The skin of a potato.
- The dust jacket of a book or phonograph record.
- An insulation covering for a steam pipe, wire, boiler, or similar part.
- An open envelope or folder for filing papers.
- The outer metal shell or case of a bullet.
- A cardboard holder for a phonograph record.
- The metal casing of a bullet.
- The insulating casing on a pipe or boiler.
- (cooking) The skin of a potato.
- A folder or envelope for holding letters or documents.
Origin of jacket
- Middle English jaket from Old French jaquet diminutive of jaque short jacket, tunic from jacques nickname for French peasants from the name Jacques jack
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle French jacquet, diminutive of Old French jaque.