Open

adjective

1. having no enclosing or confining barrier : accessible on all or nearly all sides
2. having no protective covering
3. having the skin cracked, cut, or broken so that underlying tissue is exposed
4. see also open fracture
5. marked by fracture or penetration of the skullof a head injury
6. not restricted to a particular group or category of participants
7. such as
8. enterable by both amateur (see amateur sense 1) and professional (see professional entry 1 sense 2a) contestants
9. enterable by a registered voter regardless of political affiliation
10. presenting no obstacle to passage or view : not enclosed, obstructed, or filled with objects
11. see also open water
12. away from the coastal regions : pelagicof large bodies of water
13. having the parts or surfaces laid out in an expanded position : spread out : unfolded
14. low sense 15
15. being in a position or adjustment to permit passage : not shut, sealed, or locked
16. formed with the tongue in a lower position
17. having clarity and resonance unimpaired by undue tension or constriction of the throat
18. produced by an open string or on a wind instrument by the lip without the use of slides, valves, or keysof a tone
19. available to follow or make use of
20. not taken up with duties or engagements
21. not finally decided : subject to further consideration or development
22. available for a qualified applicant : vacant
23. remaining available for use or filling until canceled
24. available for future purchase
25. available for breeding : not now pregnant
26. having a barrier (such as a door) so adjusted as to allow passage
27. not proprietary : available to third party developerscomputers
28. compare open-sourcecomputers
29. characterized by ready accessibility and usually generous attitude: such as
30. generous in giving
31. willing to hear and consider or to accept and deal with : responsive
32. allowing further comment or consideration
33. free from reserve or pretense : frank
34. not restricted to one partner at a time by mutual agreement see also open marriageof a relationship
35. accessible to the influx of new factors (such as foreign goods)
36. having openings, interruptions, or spaces
37. being porous (see porous sense 2a) and friable
38. having the lips parted
39. sparsely distributed : scattered
40. having components (see component entry 1 sense 1) separated by a space in writing or printing (such as high school)of a compound
41. not made up of a continuous closed circuit (see circuit entry 1 sense 2a) of channels
42. not stopped at the topof an organ pipe
43. not stopped by the fingerof a string on a musical instrument
44. being in operation
45. ready for business, patronage, or useespecially
46. characterized by lack of effective regulation of various commercial enterprises (see enterprise sense 2)
47. not repressed (see repress sense 1) by legal controls
48. free from checking or hampering restraints
49. relatively unguarded by opponents
50. not buttoned or zipped
51. having been opened by a first ante, bet, or bid
52. characterized by sparing use especially of the comma when possible without causing misinterpretationof punctuation
53. containing none of its endpoints
54. being a set or composed of sets each point of which has a neighborhood all of whose points are contained in the set
55. being an incomplete electrical circuit
56. not allowing the flow of electricity
57. having insufficient mass (see mass entry 2 sense 1c) to halt expansion gravitationallyof a universe
58. completely free from concealment : exposed to general view or knowledge
59. exposed or vulnerable to attack or question : subject
60. being an operation or surgical procedure in which an incision is made such that the tissues are fully exposed
61. not covered with a top, roof, or lid