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1. Dictionary

   O·pen

   /ˈōp(ə)n/

   

   adjective

   • 1. allowing access, passage, or a view through an empty space; not closed or blocked up: "the pass is kept open all year by snowplows" Similar not shutnot closedunlockedunboltedunlatchedoff the latchunfastenedunbarredunsecuredajarwide openagapegapingyawningOpposite shutclosed
   • ▪ (of a container) not fastened or sealed: "the case burst open and its contents flew all over the place"
   • ▪ (of a garment or its fasteners) not buttoned or fastened: "his tie was knotted below the open collar of his shirt" Similar unfastenednot done upundoneunbuttonedunzippedlooseunbuckleduntiedunlaced
   • ▪ (of the mouth or eyes) with lips or lids parted: "his eyes were open but he could see nothing"
   • ▪ (of a fabric) loosely knitted or woven.
   • ▪ (of the bowels) not constipated.
   • 2. exposed to the air or to view; not covered: "an open fire burned in the grate"
   • ▪ (of an area of land) not covered with buildings or trees: "increasing numbers of new houses in open countryside" Similar unenclosedrollingsweepingextensivewidewide openbroadunfencedexposedunshelteredspaciousairyuncrowdedunclutteredundevelopedunbuilt-upOpposite enclosedbuilt-updeveloped
   • ▪ (of a team member in a game) unguarded and therefore able to receive a pass: US "the trick is spreading the defense so that at least one receiver gets open"
   • ▪ damaged or injured by a deep cut in the surface: "he had his arm slashed open"
   • ▪ likely to suffer from or be affected by; vulnerable or subject to: "the system is open to abuse"
   • ▪ (of a goal or other object of attack in a game) unprotected; vulnerable.
   • ▪ (of a town or city) officially declared to be undefended, and so immune under international law from bombardment.
   • 3. with the outer edges or sides drawn away from each other; unfolded: "the trees had buds and a few open flowers" Similar spread outunfoldedunfurledunrolledstraightened outextendedstretched outOpposite closedput away
   • ▪ (of a book or file) with the covers parted or the contents in view, allowing it to be read: "she was copying verses from an open Bible"
   • ▪ (of a hand) not clenched into a fist.
   • 4. (of a store, place of entertainment, etc.) officially admitting customers or visitors; available for business: "the store stays open until 9 p.m." Similar open for businessopen to the publicOpposite shutclosed
   • ▪ (of a bank account) available for transactions: "the minimum required to keep the account open"
   • ▪ (of a phone line) ready to take calls: "our free advice line is open from 8:30 to 5:30"
   • 5. freely available or accessible; offered without restriction: "the service is open to all students at the university" Similar availableaccessibleon handobtainableon offer
   • ▪ (of a choice, offer, or opportunity) still available; such that people can take advantage of it: "the offer is open while supplies last"
   • ▪ with no restrictions on those allowed to attend or participate: "each horse had won two open races" Similar publicgeneralunrestrictednonexclusiveaccessible to everyonenonrestrictiveOpposite private
   • ▪ (of a ticket) not restricted as to day of travel: "I have an open ticket, so I can travel any day I like"
   • ▪ (of a set) not containing any of its limit points.
   • 6. (of a person) frank and communicative; not given to deception or concealment: "I was quite open about my views" Similar frankcandidhonestforthrightdirectunreservedbluntplain-spokenoutspokenfree-spokendownrightnot afraid to call a spade a spadestraightforwardgenuinenaturalingenuousinnocentartlesstransparentguilelesssimplecommunicativeforthcominguninhibitedinformal:upfrontarchaic:roundOpposite secretivedeepdevious
   • ▪ not concealed; manifest: "his eyes showed open admiration" Similar overtobviouspatentmanifestpalpableconspicuousplainundisguisedunconcealedunhiddenclearnoticeablevisibleapparentevidentblatantflagrantbarefacedbrazenOpposite concealed
   • ▪ (of conflict) fully developed and unconcealed: "the dispute erupted into open war"
   • ▪ involving no concealment, restraint, or deception; welcoming discussion, criticism, and inquiry: "the conclusions were reached in open discussion" Similar publicgeneralunrestrictednonexclusiveaccessible to everyonenonrestrictiveOpposite private
   • ▪ (of a game or style of play) characterized by action which is spread out over the field: "both sides played fast, open rugby to produce a high-scoring game"
   • 7. (of a question, case, or decision) not finally settled; still admitting of debate: "students' choice of major can be kept open until the second year" Similar unresolvednot yet settledyet to be settledundecidedunsettledup in the airopen to debateopen for discussionarguabledebatablemootOpposite decidedconcluded
   • ▪ (of the mind) accessible to new ideas; unprejudiced: "I'm keeping an open mind about my future" Similar impartialunbiasedunprejudicedobjectivedisinteresteduncommittednonpartisannondiscriminatoryneutraldispassionatedetachedOpposite biased
   • ▪ receptive to: "the union was open to suggestions for improvements" Similar receptiveamenablewilling/ready/disposed to listenresponsive
   • ▪ admitting of; making possible: "the message is open to different interpretations"
   • 8. (of a string) allowed to vibrate along its whole length.
   • ▪ (of a note) sounded from an open string or pipe.
   • ▪ (of a pipe) unstopped at each end.
   • 9. (of a vowel) produced with a relatively wide opening of the mouth and the tongue kept low.
   • ▪ (of a syllable) ending in a vowel.
   • 10. (of an electrical circuit) having a break in the conducting path.

   verb

   • 1. move or adjust (a door or window) so as to leave a space allowing access and view: "she opened the door and went in" Similar unfastenunlatchunlockunboltunbarunclickthrow wideOpposite closeshut
   • ▪ (of a door or window) be moved or adjusted to leave a space allowing access and view: "the door opened and a man came out"
   • ▪ undo or remove the lid, cover, or fastening of (a container, package, letter, etc.) to get access to the contents: "he opened a bottle inexpertly, spilling some of the wine" Similar unwrapundountieunsealuncorkbroachcrack (open)
   • ▪ part the lips or lids of (a mouth or eye): "she opened her mouth to argue"
   • ▪ (of the mouth or eyes) have the lips or lids parted: "her eyes slowly opened"
   • ▪ come apart; lose or lack its protective covering: "old wounds opened and I bled a little bit"
   • ▪ improve or make possible access to or passage through: "the president announced that his government would open the border"
   • ▪ cause evacuation of (the bowels).
   • ▪ (of a panorama) come into view; spread out before someone: "stop to marvel at the views that open out below"
   • ▪ achieve a clear view of (a place) by sailing past a headland or other obstruction: "we shall open Simon's Bay at any minute now"
   • 2. unfold or be unfolded; spread out: "the eagle opened its wings and circled up into the air" Similar spread outunfoldunfurlunrollstraighten outextendstretch outOpposite closefold up
   • ▪ part the covers or display the contents of (a book or file) to read it: "she opened her book at the prologue"
   • 3. make officially ready for customers, visitors, or business: "one woman raised $731 by opening her home and selling coffee and tea"
   • ▪ be made ready for customers, visitors, or business: "the mall didn't open until 10"
   • ▪ officially or ceremonially declare (a building, road, etc.) to be completed and ready for use: "we will have to wait until a new bypass is opened before we can tackle the problem of congestion"
   • 4. formally establish or begin (a new business or enterprise): "she began to teach and opened her own school"
   • ▪ (of an event or a new business or enterprise) be formally established or started: "two new restaurants open this week" Similar start tradingopen for businessbe ready for customers/visitorsadmit customersbegin businessset up shopput up one's plateinformal:hang out one's shinglebeginstartinitiateset in motionlaunchget goingget under waystart/get/set the ball rollingget off the groundinaugurateinformal:kick offget the show on the roadformal:commenceOpposite endfinish
   • ▪ take the action required to begin using: "they have the £10 necessary to open a savings account"
   • 5. make (something) present, available, or accessible: "a civil war there has opened the possibility of a peace treaty with the Federation"
   • 6. (of a piece of writing or music) begin: "the chapter opens with a discussion of Anglo-Irish relations"
   • ▪ (of a counsel in a law court) make a preliminary statement in a case before calling witnesses: "Comyn opened for the plaintiff"
   • ▪ make (the first bid) in the auction: "West opened 2NT"
   • 7. break the conducting path of (an electrical circuit): "the switch opens the motor circuit"
   • ▪ (of an electrical circuit or device) suffer a break in its conducting path: "the problem was caused when a switch opened at the substation"

   noun

   • 1. outdoors, especially in an exposed or unprotected setting: "guests were sitting in the open on the terrace"
   • ▪ not subject to concealment; made public: "we have never let our dislike for him come into the open"
   • 2. a championship or competition with no restrictions on who may compete: "his victory in the 2003 Australian Open"
   • 3. an accidental break in the conducting path for an electric current.

   Word Origin Old Englishopen (adjective), openian (verb), of Germanic origin; related to Dutch open and German offen, from the root of the adverb up.

   Derivatives

   • 1. openable adjective

   Scrabble Points: 6

   • O

     1

   • P

     3

   • E

     1

   • N

     1

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2. www.merriam-webster.com › dictionary › openOpen Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › open

   • Cached

   The meaning of OPEN is having no enclosing or confining barrier : accessible on all or nearly all sides. How to use open in a sentence. Synonym Discussion of Open.

3. www.dictionary.com › browse › openOPEN Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › open

   • Cached

   having relatively large or numerous spaces, voids, or intervals: an open architectural screen; open ranks of soldiers. perforated or porous: an open texture. relatively unoccupied by buildings, fences, trees, etc.: open country. not covered or closed; with certain parts apart: open eyes; open mouth.

4. dictionary.cambridge.org › dictionary › englishOPEN | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   OPEN definition: 1. not closed or fastened: 2. ready to be used or ready to provide a service: 3. not closed in or…. Learn more.

5. www.vocabulary.com › dictionary › openOpen - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › open

   The adjective open describes something that's not closed or blocked up, like open curtains that provide a view of the garden outside. Open can also refer to something that's unfastened or parted — an open jar of peanut butter, an open eye, or an open book.

6. www.thefreedictionary.com › openOpen - definition of open by The Free Dictionary

   www.thefreedictionary.com › open

   • Cached

   1. a. Affording unobstructed entrance and exit; not shut or closed. b. Affording unobstructed passage or view: open waters; the open countryside. 2. a. Having no protecting or concealing cover: an open wound; an open sports car. b. Completely obvious; blatant: open disregard of the law.

7. www.oxfordlearnersdictionaries.com › definition › englishopen adjective - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › definition › english

   • Cached

   Definition of open adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

8. www.yourdictionary.com › openOpen Definition & Meaning | YourDictionary

   www.yourdictionary.com › open

   • Cached

   Open Definition. In a state which permits access, entrance, or exit; not closed, covered, clogged, or shut. Open doors. Closed, but unlocked. The car is open. In a state which permits freedom of view or passage; not enclosed, fenced in, sheltered, screened, etc.; unobstructed; clear. Open fields.

9. www.oxfordlearnersdictionaries.com › definition › englishopen verb - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

   • Cached

   Definition of open verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

10. www.collinsdictionary.com › us › dictionaryOPEN definition in American English | Collins English Dictionary

    www.collinsdictionary.com › us › dictionary

    • Cached

    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. The flower opens to reveal a bee.

11. www.merriam-webster.com › thesaurus › openOPEN Synonyms: 529 Similar and Opposite Words - Merriam-Webster

    www.merriam-webster.com › thesaurus › open

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    Some common synonyms of open are exposed, liable, prone, sensitive, subject, and susceptible. While all these words mean "being by nature or through circumstances likely to experience something adverse," open stresses a lack of barriers preventing incurrence. a claim open to question.