› COMMERCE if a shop, bank, office, etc. is open, its door are unlocked and it is doing business: Our offices are open from 9 to 5. The club has a liquor license allowing it to remain open until 2 a.m. The new airport terminal is now open for business.
› STOCK MARKET if a financial market is open, investors can trade shares, bonds, etc. on it: For the purposes of this agreement, a business day is any day that the New York Stock Exchange is open for business.
› willing to consider something: open to sth A spokesman for the organization said they were open to a deal at the right price. open to offers/suggestions/negotiation
› available to be used, considered, etc. : open to sth Membership is open to all local businesses.leave the door/option/possibility open The appeals court left open the possibility that the computing giant could be forced to change its business practices.
› not secret or hidden from members, the public, etc.: open about sth After the economic crisis, consumers expect banks to be more open and transparent about their lending policies.
› allowing everyone to share their ideas and information: open debate/dialogue/discussion These are complicated questions, and we welcome an open discussion about them. open communication
› IT if a computer file, document, or program is open, it is ready to be used: Make sure the file you're copying to is open before you click 'Paste'. → Compare closed
keep your options open › to avoid doing or deciding something immediately in case there is a better opportunity to consider later: They are still keeping their options open but a merger is a strong possibility.
open court › LAW a court of law where the details of a case are available to the public: The law firm didn't want the hearings held in open court because it feared the press would influence public opinion.
open question › something which has not been decided yet: How voters will view this latest crisis remains an open question.
have/keep an open mind › to wait until you know all the facts before forming an opinion or making a decision about something: The judge urged the jury to keep an open mind until they had heard all the evidence.