If you open something such as a door, window, or lid, or if it opens, its position is changed so that it no longer covers a hole or gap.
He opened the window and looked out...
The church doors would open and the crowd would surge out.
If you open something such as a bottle, box, parcel, or envelope, you move, remove, or cut part of it so you can take out what is inside.
The Inspector opened the packet of cigarettes...
The capsules are fiddly to open.
If you open something such as a book, an umbrella, or your hand, or if it opens, the different parts of it move away from each other so that the inside of it can be seen.
He opened the heavy Bible...
She opens her umbrella, and walks up River Street...
If you open a computer file, you give the computer an instruction to display it on the screen.
Double click on the icon to open the file.
When you open your eyes or your eyes open, you move your eyelids upwards, for example when you wake up, so that you can see.
When I opened my eyes I saw a man with an axe standing at the end of my bed...
His eyes were opening wide.
If you open your arms, you stretch them wide apart in front of you, usually in order to put them round someone.
She opened her arms and gave me a big hug.
If you stand or sit in an open way, the front of your body is fully exposed and you are not bending forward or at an angle to someone.
Good listeners even sit in an open way: relaxed, arms loose...
I play normal bunker shots with an open stance.
If you describe a person or their character as open, you mean they are honest and do not want or try to hide anything or to deceive anyone.
He had always been open with her and she always felt she would know if he lied...
She has an open, trusting nature.
If you describe a situation, attitude, or way of behaving as open, you mean it is not kept hidden or secret.
The action is an open violation of the Vienna Convention...
Hearing the case in open court is only one part of the judicial process.
If you are open to suggestions or ideas, you are ready and willing to consider or accept them.
They are open to suggestions on how working conditions might be improved.
If you say that a system, person, or idea is open to something such as abuse or criticism, you mean they might receive abuse or criticism because of their qualities, effects, or actions.
The system, though well-meaning, is open to abuse...
They left themselves wide open to accusations of double standards and hypocrisy.
If you say that a fact or question is open to debate, interpretation, or discussion, you mean that people are uncertain whether it is true, what it means, or what the answer is.
The truth of the facts produced may be open to doubt...
It is an open question how long that commitment can last.
If people open something such as a blocked road or a border, or if it opens, people can then pass along it or through it.
The rebels have opened the road from Monrovia to the Ivory Coast...
The solid rank of police officers lining the courtroom opened to let them pass.
If a place opens into another, larger place, you can move from one directly into the other.
The corridor opened into a low smoky room.
An open area is a large area that does not have many buildings or trees in it.
Officers will also continue their search of nearby open ground.
An open structure or object is not covered or enclosed.
Don't leave a child alone in a room with an open fire.
An open wound is one from which a liquid such as blood is coming.
If you open your shirt or coat, you undo the buttons or pull down the zip.
I opened my coat and let him see the belt.
When a shop, office, or public building opens or is opened, its doors are unlocked and the public can go in.
Banks closed on Friday afternoon and did not open again until Monday morning.
...a gang of three who'd apparently been lying in wait for him to open the shop.
When a public building, factory, or company opens or when someone opens it, it starts operating for the first time.
The original station opened in 1754...
The complex opens to the public tomorrow...
If something such as a meeting or series of talks opens, or if someone opens it, it begins.
...an emergency session of the Russian Parliament due to open later this morning...
They are now ready to open negotiations.
If an event such as a meeting or discussion opens with a particular activity or if a particular activity opens an event, that activity is the first thing that happens or is dealt with. You can also say that someone such as a speaker or singer opens by doing a particular thing.
The service opened with a hymn...
She opened with an impressive version of 'I Still Haven't Found What I'm Looking For'...
On the stock exchange, the price at which currencies, shares, or commodities open is their value at the start of that day's trading.
Gold declined $2 in Zurich to open at 385.50...
In Paris and Milan, the dollar opened almost unchanged.
When a film, play, or other public event opens, it begins to be shown, be performed, or take place for a limited period of time.
A photographic exhibition opens at the Royal College of Art on Wednesday...
This show, too, was virtually sold out before it opened.
If you open an account with a bank or a commercial organization, you begin to use their services.
He tried to open an account at the branch of his bank nearest to his workplace.
If an opportunity or choice is open to you, you are able to do a particular thing if you choose to.
There are a wide range of career opportunities open to young people.
To open opportunities or possibilities means the same as to open them up.
The chief of naval operations wants to open opportunities for women in the Navy...
A series of fortunate opportunities opened to him.
You can use open to describe something that anyone is allowed to take part in or accept.
A recent open meeting of College members revealed widespread dissatisfaction...
A portfolio approach would keep entry into the managerial profession open and flexible.
If something such as an offer or job is open, it is available for someone to accept or apply for.
The offer will remain open until further notice.
If you do something in the open, you do it out of doors rather than in a house or other building.
Many are sleeping in the open because they have no shelter.
If an attitude or situation is in the open or out in the open, people know about it and it is no longer kept secret.
The medical service had advised us to keep it a secret, but we wanted it in the open.
If something is wide open, it is open to its full extent.
The child had left the inner door wide open.
If you say that a competition, race, or election is wide open, you mean that anyone could win it, because there is no competitor who seems to be much better than the others.
The competition has been thrown wide open by the absence of the world champion.
1. a clear or unobstructed space or expanse of land or water;"finally broke out of the forest into the open"
2. where the air is unconfined;"he wanted to get outdoors a little""the concert was held in the open air""camping in the open"
3. a tournament in which both professionals and amateurs may play
4. information that has become public;"all the reports were out in the open""the facts had been brought to the surface"
1. cause to open or to become open;"Mary opened the car door"
2. start to operate or function or cause to start operating or functioning;"open a business"
3. become open;"The door opened"
4. begin or set in action, of meetings, speeches, recitals, etc.;"He opened the meeting with a long speech"
5. spread out or open from a closed or folded state;"open the map""spread your arms"
6. make available;"This opens up new possibilities"
7. become available;"an opportunity opened up"
8. have an opening or passage or outlet;"The bedrooms open into the hall"
9. make the opening move;"Kasparov opened with a standard opening"
10. afford access to;"the door opens to the patio""The French doors give onto a terrace"
11. display the contents of a file or start an application as on a computer
1. affording unobstructed entrance and exit; not shut or closed;"an open door""they left the door open"
2. affording free passage or access;"open drains""the road is open to traffic""open ranks"
3. with no protection or shield;"the exposed northeast frontier""open to the weather""an open wound"
4. open to or in view of all;"an open protest""an open letter to the editor"
5. used of mouth or eyes;"keep your eyes open""his mouth slightly opened"
6. not having been filled;"the job is still open"
7. accessible to all;"open season""an open economy"
8. not defended or capable of being defended;"an open city""open to attack"
9. (of textures) full of small openings or gaps;"an open texture""a loose weave"
10. having no protecting cover or enclosure;"an open boat""an open fire""open sports cars"
11. opened out;"an open newspaper"
12. of a set; containing points whose neighborhood consists of other points of the same set, or being the complement of an open set; of an interval; containing neither of its end points
13. not brought to a conclusion; subject to further thought;"an open question""our position on this bill is still undecided""our lawsuit is still undetermined"
14. not sealed or having been unsealed;"the letter was already open""the opened package lay on the table"
15. without undue constriction as from e.g. tenseness or inhibition;"the clarity and resonance of an open tone""her natural and open response"
16. relatively empty of and unobstructed by fences or hedges or headlands or shoals;"in open country""the open countryside""open waters""on the open seas"
17. open and observable; not secret or hidden;"an overt lie""overt hostility""overt intelligence gathering"
18. used of string or hole or pipe of instruments
19. not requiring union membership;"an open shop employs nonunion workers"
20. possibly accepting or permitting;"a passage capable of misinterpretation""open to interpretation""an issue open to question""the time is fixed by the director and players and therefore subject to much variation"
21. not secret;"open plans""an open ballot"
22. without any attempt at concealment; completely obvious;"open disregard of the law""open family strife""open hostility""a blatant appeal to vanity""a blazing indiscretion"
23. affording free passage or view;"a clear view""a clear path to victory"
24. lax in enforcing laws;"an open town"
25. openly straightforward and direct without reserve or secretiveness;"his candid eyes""an open and trusting nature""a heart-to-heart talk"
26. sincere and free of reserve in expression;"Please be open with me"
27. receptive to new ideas;"an open mind""open to new ideas"
28. ready for business;"the stores are open"