What is "compressed tight"

closed \closed\ adj.

1. having an opening obstructed. [Narrower terms: blind] Also See: obstructed, sealed, shut, unopen, closed. Antonym: open.

2. (Math.) 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. open

3. Being in a position to obstruct an opening; -- especially of doors. [Narrower terms: fastened, latched] Also See: closed. Antonym: open.

   Syn: shut, unopen.

4. having skin drawn so as to obstruct the opening; -- used of mouth or eyes. Opposite of open. he sat quietly with closed eyes [Narrower terms: blinking, winking; compressed, tight; squinched, squinting]

   Syn: shut.

5. requiring union membership; -- of a workplace; as, a closed shop. [prenominal]

6. closed with shutters.

7. hidden from the public; as, a closed ballot.

8. not open to the general public; as, a closed meeting.

9. unsympathetic; -- of a person's attitude. a closed mind unreceptive to new ideas

10. surrounded by walls. a closed porch

    Syn: closed in(predicate).

11. made compact by bending or doubling over; as, a closed map.

    Syn: folded.

12. closed or fastened with or as if with buttons. [Narrower terms: buttoned (vs. unbuttoned)]

13. not engaged in activity; -- of an organization or business establishment. the airport is closed because of the weather; the many closed shops and factories made the town look deserted

    Syn: shut down.