Read the dictionary definition of open. All definitions for this word.
1. information that has become public
1. all the reports were out in the open
2. the facts had been brought to the surface
2. a tournament in which both professionals and amateurs may play
3. where the air is unconfined
1. he wanted to get outdoors a little
2. the concert was held in the open air
3. camping in the open
4. a clear or unobstructed space or expanse of land or water
1. finally broke out of the forest into the open
5. make available
1. This opens up new possibilities
6. become available
1. an opportunity opened up
7. make the opening move
1. Kasparov opened with a standard opening
8. cause to open or to become open
1. Mary opened the car door
9. become open
1. The door opened
10. spread out or open from a closed or folded state
1. open the map
2. spread your arms
11. display the contents of a file or start an application as on a computer
12. afford access to
1. the door opens to the patio
2. The French doors give onto a terrace
13. begin or set in action, of meetings, speeches, recitals, etc.
1. He opened the meeting with a long speech
14. start to operate or function or cause to start operating or functioning
1. open a business
15. have an opening or passage or outlet
1. The bedrooms open into the hall
16. ready for business
1. the stores are open
17. not having been filled
1. the job is still open
18. openly straightforward and direct without reserve or secretiveness
1. his candid eyes
2. an open and trusting nature
3. a heart-to-heart talk
19. without undue constriction as from e.g. tenseness or inhibition
1. the clarity and resonance of an open tone
2. her natural and open response
20. affording free passage or view
1. a clear view
2. a clear path to victory
3. open waters
4. the open countryside
21. affording unobstructed entrance and exit; not shut or closed
1. an open door
2. they left the door open
22. affording free passage or access
1. open drains
2. the road is open to traffic
3. open ranks
23. used of mouth or eyes
1. keep your eyes open
2. his mouth slightly opened
24. having no protecting cover or enclosure
1. an open boat
2. an open fire
3. open sports cars
25. (set theory) of an interval that contains neither of its endpoints
26. open and observable; not secret or hidden
1. an overt lie
2. overt hostility
3. overt intelligence gathering
4. open ballots
27. open to or in view of all
1. an open protest
2. an open letter to the editor
28. with no protection or shield
1. the exposed northeast frontier
2. open to the weather
3. an open wound
29. ready or willing to receive favorably
1. receptive to the proposals
30. accessible to all
1. open season
2. an open economy