The blanket served as a warm cover on the cold night.

A protective layer or covering that serves to shield or conceal something.
The book has a colorful cover.
Put a cover on the pot.
The snow was a white cover.
book cover
dust cover
protective cover
sheath
lid
coating
The band released a new cover of the classic song.

A representation or version of something, often in a different format.
This is a great cover song.
Her cover was amazing.
We heard a new cover.
new cover
cover version
cover song
rendition
interpretation
adaptation