noun
jacket
JAK-iht
noun
1
A garment for the upper body, worn over a shirt, usually reaching the waist or thigh.
"She grabbed a jacket before heading out into the cold."
"He hung his jacket on the back of the chair."
2
A protective outer covering or casing wrapped around something, such as a hot water tank or the skin of a baked potato.
"The pipes were fitted with an insulating jacket to stop heat loss."
"He scooped the filling out of the potato jacket."
verb
1
To enclose or wrap something in a protective covering.
"The cable is jacketed in thick rubber for protection."
How to Use Jacket
Learner’s notesIn plain EnglishA coat-like garment for the top half of the body, or by extension any protective outer covering.
Common pairings
put on a jacket
leather jacket
jacket potato
life jacket
Word Forms
jacketed past tense, jacketted past tense, jackets plural, jackets singular
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Etymology
From Middle French jacquet, a diminutive of Old French jaque, an old term for a short coat.