noun

• An event or occurrence that signifies an ending.
• A feeling of completeness; the experience of an emotional conclusion, usually to a difficult period.
• A device to facilitate temporary and repeatable opening and closing.
• (programming) An abstraction that represents a function within an environment, a context consisting of the variables that are both bound at a particular time during the execution of the program and that are within the function's scope.
• (mathematics) The smallest set that both includes a given subset and possesses some given property.
• (topology, of a set) The smallest closed set which contains the given set.
• The act of shutting; a closing.
• The act of shutting or closing something permanently or temporarily.
• That which closes or shuts; that by which separate parts are fastened or closed.
• (obsolete) That which encloses or confines; an enclosure.
• (politics) A method of ending a parliamentary debate and securing an immediate vote upon a measure before a legislative body.
• (sociology) The phenomenon by which a group maintains its resources by the exclusion of others from their group based on varied criteria. ᵂᵖ
• The process whereby the reader of a comic book infers the sequence of events by looking at the picture panels.
• (food packaging industry) The element of packaging that closes a container.