A jacket is a common piece of clothing. People wear it outside to stay warm or look nice. Jackets have sleeves and often buttons or a zipper.
I wear a jacket when it is cold.
She has a red jacket for winter.
A jacket can mean a cover or case around an object. It protects the object or keeps it warmer. This meaning is used in tools or containers.
The bottle has a plastic jacket.
The machine needs a metal jacket.
A book's jacket is the outer cover, often a paper slip. It protects the book and may have pictures or information. People see this on books in libraries or stores.
The book has a colorful jacket.
Please do not tear the jacket of the book.
In industry, a jacket is a hard cover around pipes or tanks. It helps keep things hot or cold inside. This keeps energy and materials safe.
The steam pipe has an insulation jacket.
They fixed the jacket on the oil tank.
Sometimes, 'jacket' is used in a figurative way to mean the outside show or cover of a person’s feelings or character. It means what you see on the surface, not inside.
He wore a jacket of confidence.
Her smile was just a jacket hiding sadness.
A dust jacket is a removable paper cover on a hardcover book. It protects the book and often shows pictures or information about the story or author.
The old book's jacket was torn.
They bought a book with a pretty jacket.
