Closed

Closed may refer to:

Math

• Closure (mathematics)
• Closed manifold
• Closed orbits
• Closed set
• Closed differential form
• Closed map, a function that is closed.

Other

• Cloister, a closed walkway
• Closed-circuit television
• Closed, an online community at the social web network Facebook
• Closing (real estate)

See also

• All pages beginning with "Closed"
• Close (disambiguation) or closet, similar spellings
• Open (disambiguation)