(adjective, verb)


1. not open or affording passage or access

- the many closed streets made travel difficult

- our neighbors peeped from behind closed curtains

Similar word(s): obstructed, closed, shut, unopen, blocked, drawn, stoppered, nonopening, sealed

2. (set theory) of an interval that contains both its endpoints

3. not open

Similar word(s): closed, shut, unopen

4. used especially of mouth or eyes

- he sat quietly with closed eyes

Similar word(s): blinking, winking, compressed, tight, squinched, squinting, shut

5. requiring union membership

- a closed shop

Similar word(s): union

6. with shutters closed

Similar word(s): shuttered

7. not open to the general public

- a closed meeting

Similar word(s): restricted

8. not having an open mind

- a closed mind unreceptive to new ideas

Similar word(s): unreceptive, unsympathetic

9. blocked against entry

- a closed porch

Similar word(s): enclosed

Sentences with closed as an adjective:

- closed source

- a closed committee

- The set of integers is closed under addition: .


1. simple past tense and past participle of close