Dictionary.net

shut down; "the airport is closed because of the weather"; "the many closed shops and factories made the town look deserted"

(of the wings of birds and insects) closed together

not open; "the door slammed shut"

not open or affording passage or access; "the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains"

blocked against entry; "a closed porch"

not open to the general public; "a closed meeting"

requiring union membership; "a closed shop"

of a curve or surface; having no end points or boundary curves; of a set; having members that can be produced by a specific operation on other members of the same set; of an interval; containing both its endpoints

shut down; "the airport is closed because of the weather"; "the many closed shops and factories made the town look deserted"

(of the wings of birds and insects) closed together

not open; "the door slammed shut"

not open or affording passage or access; "the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains"

blocked against entry; "a closed porch"

(mathematics) of a curve or surface; having no end points or boundary curves; of a set; having members that can be produced by a specific operation on other members of the same set; of an interval; containing both its endpoints

not open to the general public; "a closed meeting"

requiring union membership; "a closed shop"

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