| Noun | 1. | open - a clear or unobstructed space or expanse of land or water; "finally broke out of the forest into the open"area, country - a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography); "it was a mountainous area"; "Bible country" | |
| 2. | open - 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. | open - a tournament in which both professionals and amateurs may playtournament, tourney - a sporting competition in which contestants play a series of games to decide the winner | |
| 4. | open - information that has become public; "all the reports were out in the open"; "the facts had been brought to the surface" | |
| Verb | 1. | open - cause to open or to become open; "Mary opened the car door"unbar - remove a bar from (a door, for example) break open - open with force; "He broke open the the picnic basket" click open - open with a clicking sound; "These keys have clicked open many doors" reopen - open again or anew; "They reopened the theater" unlock - open the lock of; "unlock the door" unbolt - undo the bolt of; "unbolt the door" unseal - break the seal of; "He unsealed the letter" uncork - draw the cork from (bottles); "uncork the French wine" jimmy, lever, prise, pry, prize - to move or force, especially in an effort to get something open; "The burglar jimmied the lock", "Raccoons managed to pry the lid off the garbage pail" lance - open by piercing with a lancet; "lance a boil" shut, close - move so that an opening or passage is obstructed; make shut; "Close the door"; "shut the window" | |
| 2. | open - start to operate or function or cause to start operating or functioning; "open a business"close, close down, shut down, fold - cease to operate or cause to cease operating; "The owners decided to move and to close the factory"; "My business closes every night at 8 P.M." | |
| 3. | open - become open; "The door opened"change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election" unfasten - become undone or untied; "The shoelaces unfastened" fly open - come open suddenly; "the doors flew open in the stroang gust" shut, close - become closed; "The windows closed with a loud bang" | |
| 4. | open - begin or set in action, of meetings, speeches, recitals, etc.; "He opened the meeting with a long speech"embark on, start up, commence, start - get off the ground; "Who started this company?"; "We embarked on an exciting enterprise"; "I start my day with a good breakfast"; "We began the new semester"; "The afternoon session begins at 4 PM"; "The blood shed started when the partisans launched a surprise attack" inaugurate - open ceremoniously or dedicate formally call to order - open formally; "the chairman called the meeting to order by pounding his gavel" pioneer, open up - open up an area or prepare a way; "She pioneered a graduate program for women students" close - finish or terminate (meetings, speeches, etc.); "The meeting was closed with a charge by the chairman of the board" | |
| 5. | open - spread out or open from a closed or folded state; "open the map"; "spread your arms"undo - cancel, annul, or reverse an action or its effect; "I wish I could undo my actions" divaricate - spread apart; "divaricate one's fingers" grass - spread out clothes on the grass to let it dry and bleach butterfly - cut and spread open, as in preparation for cooking; "butterflied shrimp" uncross - change from a crossed to an uncrossed position; "She uncrossed her legs" splay - spread open or apart; "He splayed his huge hands over the table" | |
| 6. | open - make available; "This opens up new possibilities"yield, afford, give - be the cause or source of; "He gave me a lot of trouble"; "Our meeting afforded much interesting information" | |
| 7. | open - become available; "an opportunity opened up"come up, arise - occur; "A slight unpleasantness arose from this discussion" | |
| 8. | open - have an opening or passage or outlet; "The bedrooms open into the hall" | |
| 9. | open - make the opening move; "Kasparov opened with a standard opening"chess game, chess - a game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king move, go - have a turn; make one's move in a game; "Can I go now?" | |
| 10. | open - afford access to; "the door opens to the patio"; "The French doors give onto a terrace" | |
| 11. | open - display the contents of a file or start an application as on a computerdisplay, exhibit, expose - to show, make visible or apparent; "The Metropolitan Museum is exhibiting Goya's works this month"; "Why don't you show your nice legs and wear shorter skirts?"; "National leaders will have to display the highest skills of statesmanship" close - cause a window or an application to disappear on a computer desktop | |
| Adj. | 1. | open - affording unobstructed entrance and exit; not shut or closed; "an open door"; "they left the door open"open - affording free passage or access; "open drains"; "the road is open to traffic"; "open ranks" | |
| 2. | open - affording free passage or access; "open drains"; "the road is open to traffic"; "open ranks"open, unfastened - affording unobstructed entrance and exit; not shut or closed; "an open door"; "they left the door open" unsealed - not closed or secured with or as if with a seal; "unsealed goods"; "the letter arrived unsealed" closed - not open or affording passage or access; "the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains" | |
| 3. | open - with no protection or shield; "the exposed northeast frontier"; "open to the weather"; "an open wound" | |
| 4. | open - open to or in view of all; "an open protest"; "an open letter to the editor"public - not private; open to or concerning the people as a whole; "the public good"; "public libraries"; "public funds"; "public parks"; "a public scandal"; "public gardens"; "performers and members of royal families are public figures" | |
| 5. | open - used of mouth or eyes; "keep your eyes open"; "his mouth slightly opened"shut, closed - used especially of mouth or eyes; "he sat quietly with closed eyes"; "his eyes were shut against the sunlight" | |
| 6. | open - not having been filled; "the job is still open"available - obtainable or accessible and ready for use or service; "kept a fire extinguisher available"; "much information is available through computers"; "available in many colors"; "the list of available candidates is unusually long" | |
| 7. | open - accessible to all; "open season"; "an open economy" | |
| 8. | open - not defended or capable of being defended; "an open city"; "open to attack"vulnerable - susceptible to attack; "a vulnerable bridge" | |
| 9. | open - (of textures) full of small openings or gaps; "an open texture"; "a loose weave"coarse - of texture; large-grained or rough to the touch; "coarse meal"; "coarse sand"; "a coarse weave" | |
| 10. | open - having no protecting cover or enclosure; "an open boat"; "an open fire"; "open sports cars"unenclosed - not closed in our surrounded or included; "an unenclosed porch"; "unenclosed common land" | |
| 11. | open - opened out; "an open newspaper"unfolded - spread or opened out; "an unfolded newspaper"; "unfolded wings" | |
| 12. | open - 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 pointsmath, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement closed - of a curve or surface; having no end points or boundary curves; of a set; having members that can be produced by a specific operation on other members of the same set; of an interval; containing both its endpoints | |
| 13. | open - 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"unsettled - still in doubt; "an unsettled issue"; "an unsettled state of mind" | |
| 14. | open - not sealed or having been unsealed; "the letter was already open"; "the opened package lay on the table"unsealed - not closed or secured with or as if with a seal; "unsealed goods"; "the letter arrived unsealed" | |
| 15. | open - without undue constriction as from e.g. tenseness or inhibition; "the clarity and resonance of an open tone"; "her natural and open response"unconstricted - not constricted physically or by extension psychologically; "healthy unconstricted arteries" | |
| 16. | open - 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"empty - holding or containing nothing; "an empty glass"; "an empty room"; "full of empty seats"; "empty hours" | |
| 17. | open - open and observable; not secret or hidden; "an overt lie"; "overt hostility"; "overt intelligence gathering"explicit, expressed - precisely and clearly expressed or readily observable; leaving nothing to implication; "explicit instructions"; "she made her wishes explicit"; "explicit sexual scenes" public - not private; open to or concerning the people as a whole; "the public good"; "public libraries"; "public funds"; "public parks"; "a public scandal"; "public gardens"; "performers and members of royal families are public figures" unconcealed - not concealed or hidden; "her unconcealed hostility poisoned the atmosphere"; "watched with unconcealed curiosity" | |
| 18. | open - used of string or hole or pipe of instrumentsmusic - an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner | |
| 19. | open - not requiring union membership; "an open shop employs nonunion workers"nonunion - not belonging to or not allowing affiliation with a trade union; "nonunion carpenters"; "a nonunion contractor" | |
| 20. | open - 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"susceptible - (often followed by `of' or `to') yielding readily to or capable of; "susceptible to colds"; "susceptible of proof" | |
| 21. | open - not secret; "open plans"; "an open ballot"unconcealed - not concealed or hidden; "her unconcealed hostility poisoned the atmosphere"; "watched with unconcealed curiosity" | |
| 22. | open - 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"unconcealed - not concealed or hidden; "her unconcealed hostility poisoned the atmosphere"; "watched with unconcealed curiosity" | |
| 23. | open - affording free passage or view; "a clear view"; "a clear path to victory"unobstructed - free from impediment or obstruction or hindrance; "an unobstructed view" | |
| 24. | open - lax in enforcing laws; "an open town"unlawful - contrary to or prohibited by or defiant of law; "unlawful measures"; "unlawful money"; "unlawful hunters" | |
| 25. | open - openly straightforward and direct without reserve or secretiveness; "his candid eyes"; "an open and trusting nature"; "a heart-to-heart talk"artless, ingenuous - characterized by an inability to mask your feelings; not devious; "an ingenuous admission of responsibility" | |
| 26. | open - sincere and free of reserve in expression; "Please be open with me"honest, honorable - not disposed to cheat or defraud; not deceptive or fraudulent; "honest lawyers"; "honest reporting"; "an honest wage"; "honest weight" | |
| 27. | open - receptive to new ideas; "an open mind"; "open to new ideas"unprejudiced, impartial - free from undue bias or preconceived opinions; "an unprejudiced appraisal of the pros and cons"; "the impartial eye of a scientist" | |
| 28. | open - ready for business; "the stores are open"active - full of activity or engaged in continuous activity; "an active seaport"; "an active bond market"; "an active account" | |