English▸ noun an outer garment extending either to the waist or the hips, typically having sleeves and a fastening down the front.
▪ an outer covering, especially one placed around a tank or pipe to insulate it.
▪ a metal casing for a bullet.
▪ the skin of a potato:
potatoes cooked in their jackets.
▪ the dust jacket of a book.
▪ a record sleeve.
▪ a steel frame fixed to the seabed, forming the support structure of an oil production platform.
▸ verb
(jackets, jacketing, jacketed)
[with object] cover with a jacket.