Closure may refer to:

• Closure (computer science), an abstraction binding a function to its scope
• Closure (mathematics), the smallest object that both includes the object as a subset and possesses some given property
• Closure (topology), the set of all points intuitively "close to" a given set
• Closure (philosophy), a philosophical description of the world put forward by Hilary Lawson
• Closure (psychology), the state of experiencing an emotional conclusion to a difficult life event
• Cloture, a motion in parliamentary procedure to bring debate to a quick end
• Law of Closure, a principle in Gestalt psychology

In music:

• Closure (Nine Inch Nails VHS), a Nine Inch Nails video set
• Closure (band), a Canadian rock band
• "Closure", a song by Chevelle from their album Wonder What's Next
• "Closure", a song by Hood from their album Outside Closer
• Resolution (music), in music theory

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