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Cover is an abstract term generally meaning giving closure and protection, and has several uses:

• a cover can be a lid or seal, usually one that completely closes the object
• Cover (telecommunications), a communications concealment technique
• Cover (philately), generic term for envelope or package
• Cover (law), a remedy for the breach of a contract for the receipt of goods.
• Cover version, a new version of a previously recorded song
• Cover band, a musical band that plays only cover versions
• Cover (topology), the mathematical concept of a collection of subsets of a set whose union is the whole set
• Cover (unit), an area approximately equal to 2698 square metres
• Cover (military), a form of protection in combat
• Cover (intelligence), the purported occupation or purpose of an agent.

See also

• album cover (or CD and DVD packaging)
• book cover
• coverall
• under cover
• cover up

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