Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun open

4 senses of open

Sense 1
open, clear -- (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")

Sense 2
outdoors, out-of-doors, open air, 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")
       => outside, exterior -- (the region that is outside of something)

Sense 3
open -- (a tournament in which both professionals and amateurs may play)
       => tournament, tourney -- (a sporting competition in which contestants play a series of games to decide the winner)

Sense 4
open, surface -- (information that has become public; "all the reports were out in the open"; "the facts had been brought to the surface")
       => public knowledge, general knowledge -- (knowledge that is available to anyone)

Antonyms of verb open

5 of 11 senses of open

Sense 1
open, open up -- (cause to open or to become open; "Mary opened the car door")
       Antonym of close (Sense 1)
      => close, shut -- (move so that an opening or passage is obstructed; make shut; "Close the door"; "shut the window")

Sense 2
open, open up -- (start to operate or function or cause to start operating or functioning; "open a business")
       Antonym of close (Sense 3)
      => close up, close, fold, shut down, close down -- (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."; "close up the shop")

Sense 3
open, open up -- (become open; "The door opened")
       Antonym of close (Sense 2)
      => close, shut -- (become closed; "The windows closed with a loud bang")

Sense 4
open -- (begin or set in action, of meetings, speeches, recitals, etc.; "He opened the meeting with a long speech")
       Antonym of close (Sense 4)
      => close -- (finish or terminate (meetings, speeches, etc.); "The meeting was closed with a charge by the chairman of the board")

Sense 11
open -- (display the contents of a file or start an application as on a computer)
       Antonym of close (Sense 9)
      => close -- (cause a window or an application to disappear on a computer desktop)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb open

11 senses of open

Sense 1
open, open up -- (cause to open or to become open; "Mary opened the car door")

Sense 2
open, open up -- (start to operate or function or cause to start operating or functioning; "open a business")

Sense 3
open, open up -- (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")

Sense 4
open -- (begin or set in action, of meetings, speeches, recitals, etc.; "He opened the meeting with a long speech")
       => start, start up, embark on, commence -- (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")
          Phrasal Verb-> open up#4

Sense 5
unfold, spread, spread out, 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")

Sense 6
open, open up -- (make available; "This opens up new possibilities")
       => yield, give, afford -- (be the cause or source of; "He gave me a lot of trouble"; "Our meeting afforded much interesting information")

Sense 7
open, open up -- (become available; "an opportunity opened up")
       => arise, come up -- (result or issue; "A slight unpleasantness arose from this discussion")

Sense 8
open -- (have an opening or passage or outlet; "The bedrooms open into the hall")

Sense 9
open -- (make the opening move; "Kasparov opened with a standard opening")
       => move, go -- (have a turn; make one's move in a game; "Can I go now?")

Sense 10
afford, open, give -- (afford access to; "the door opens to the patio"; "The French doors give onto a terrace")

Sense 11
open -- (display the contents of a file or start an application as on a computer)
       => expose, exhibit, display -- (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")

Antonyms of adj open

21 senses of open

Sense 1
open (vs. shut), unfastened -- (affording unobstructed entrance and exit; not shut or closed; "an open door"; "they left the door open")

shut (vs. open), unopen, closed -- (not open; "the door slammed shut")

Sense 2
open (vs. closed) -- (affording free passage or access; "open drains"; "the road is open to traffic"; "open ranks")

closed (vs. open) -- (not open or affording passage or access; "the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains")
        => blocked, out of use (predicate) -- (closed to traffic; "the repaving results in many blocked streets")
        => drawn -- (having the curtains or draperies closed or pulled shut; "the drawn draperies kept direct sunlight from fading the rug")
        => stoppered -- ((of a container) having a stopper in the opening; "the tightly stoppered bottles")
        => nonopening -- (not open; not opening)

Sense 3
exposed, open -- (with no protection or shield; "the exposed northeast frontier"; "open to the weather"; "an open wound")

INDIRECT (VIA unprotected) -> protected -- (kept safe or defended from danger or injury or loss; "the most protected spot I could find")

Sense 4
open -- (open to or in view of all; "an open protest"; "an open letter to the editor")

INDIRECT (VIA public) -> private -- (confined to particular persons or groups or providing privacy; "a private place"; "private discussions"; "private lessons"; "a private club"; "a private secretary"; "private property"; "the former President is now a private citizen"; "public figures struggle to maintain a private life")

Sense 5
open (vs. closed), opened -- (used of mouth or eyes; "keep your eyes open"; "his mouth slightly opened")

closed (vs. open), shut -- (used especially of mouth or eyes; "he sat quietly with closed eyes"; "his eyes were shut against the sunlight")
        => blinking, winking -- (closing the eyes intermittently and rapidly; "he stood blinking in the bright sunlight")
        => compressed, tight -- (pressed tightly together; "with lips compressed")
        => squinched, squinting -- (having eyes half closed in order to see better; "squinched eyes")

Sense 6
open -- (not having been filled; "the job is still open")

INDIRECT (VIA available) -> unavailable -- (not available or accessible or at hand; "fresh milk was unavailable during the emergency"; "his secretary said he was unavailable for comment")

Sense 7
open -- (accessible to all; "open season"; "an open economy")

INDIRECT (VIA unrestricted) -> restricted -- (subject to restriction or subjected to restriction; "of restricted importance")

Sense 8
assailable, undefendable, undefended, open -- (not defended or capable of being defended; "an open city"; "open to attack")

INDIRECT (VIA vulnerable) -> invulnerable -- (immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs")

Sense 9
loose, open -- ((of textures) full of small openings or gaps; "an open texture"; "a loose weave")

INDIRECT (VIA coarse) -> fine -- (of textures that are smooth to the touch or substances consisting of relatively small particles; "wood with a fine grain"; "fine powdery snow"; "fine rain"; "batiste is a cotton fabric with a fine weave"; "covered with a fine film of dust")

Sense 10
open -- (having no protecting cover or enclosure; "an open boat"; "an open fire"; "open sports cars")

INDIRECT (VIA unenclosed) -> enclosed -- (closed in or surrounded or included within; "an enclosed porch"; "an enclosed yard"; "the enclosed check is to cover shipping and handling")

Sense 11
open (vs. closed) -- ((set theory) of an interval that contains neither of its endpoints)

closed (vs. open) -- ((set theory) of an interval that contains both its endpoints)

Sense 12
open, undecided, undetermined, unresolved -- (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")

INDIRECT (VIA unsettled) -> settled -- (established or decided beyond dispute or doubt; "with details of the wedding settled she could now sleep at night")

Sense 13
open, opened -- (not sealed or having been unsealed; "the letter was already open"; "the opened package lay on the table")

INDIRECT (VIA unsealed) -> sealed -- (closed or secured with or as if with a seal; "my lips are sealed"; "the package is still sealed"; "the premises are sealed")

Sense 14
open -- (without undue constriction as from e.g. tenseness or inhibition; "the clarity and resonance of an open tone"; "her natural and open response")

INDIRECT (VIA unconstricted) -> constricted -- (drawn together or squeezed physically or by extension psychologically; "a constricted blood vessel"; "a constricted view of life")

Sense 15
receptive (vs. unreceptive), open -- (ready or willing to receive favorably; "receptive to the proposals")


Sense 16
overt (vs. covert), open -- (open and observable; not secret or hidden; "an overt lie"; "overt hostility"; "overt intelligence gathering"; "open ballots")


Sense 17
open (prenominal) -- (not requiring union membership; "an open shop employs nonunion workers")

INDIRECT (VIA nonunion) -> union -- (of trade unions; "the union movement"; "union negotiations"; "a union-shop clause in the contract")

Sense 18
capable, open, subject -- (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")

INDIRECT (VIA susceptible) -> unsusceptible, insusceptible -- (not susceptible to)

Sense 19
clear, open -- (affording free passage or view; "a clear view"; "a clear path to victory"; "open waters"; "the open countryside")

INDIRECT (VIA unobstructed) -> obstructed -- (shut off to passage or view or hindered from action; "a partially obstructed passageway"; "an obstructed view"; "justice obstructed is not justice")

Sense 20
candid, open, heart-to-heart -- (openly straightforward and direct without reserve or secretiveness; "his candid eyes"; "an open and trusting nature"; "a heart-to-heart talk")

INDIRECT (VIA ingenuous) -> disingenuous, artful -- (not straightforward or candid; giving a false appearance of frankness; "an ambitious, disingenuous, philistine, and hypocritical operator, who...exemplified...the most disagreeable traits of his time"- David Cannadine; "a disingenuous excuse")

Sense 21
open -- (ready for business; "the stores are open")

INDIRECT (VIA active) -> inactive -- (lacking activity; lying idle or unused; "an inactive mine"; "inactive accounts"; "inactive machinery")

Similarity of adj open

21 senses of open

Sense 1
open (vs. shut), unfastened -- (affording unobstructed entrance and exit; not shut or closed; "an open door"; "they left the door open")
       => ajar (predicate) -- (slightly open; "the door was ajar")
       => wide-open -- (open wide; "left the doors wide-open")
          Also See-> open#2

Sense 2
open (vs. closed) -- (affording free passage or access; "open drains"; "the road is open to traffic"; "open ranks")
       => opened -- (made open or clear; "the newly opened road")
       => unstoppered -- ((of a container) having the stopper removed; "whiskey spilled from the unstoppered bottle")
       => yawning -- (gaping open as if threatening to engulf someone or something; "the yawning mine shaft"; "a yawning abyss")
          Also See-> open#1, unfastened#2; unsealed#2

Sense 3
exposed, open -- (with no protection or shield; "the exposed northeast frontier"; "open to the weather"; "an open wound")
       => unprotected (vs. protected) -- (lacking protection or defense)

Sense 4
open -- (open to or in view of all; "an open protest"; "an open letter to the editor")
       => public (vs. private) -- (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")

Sense 5
open (vs. closed), opened -- (used of mouth or eyes; "keep your eyes open"; "his mouth slightly opened")
       => agape (predicate), gaping -- (with the mouth wide open as in wonder or awe; "the gaping audience"; "we stood there agape with wonder"; "with mouth agape")
       => agaze, staring -- ((used of eyes) open and fixed as if in fear or wonder; "staring eyes")
       => wide-eyed, wide -- ((used of eyes) fully open or extended; "stared with wide eyes")
       => yawning -- (with the mouth wide open indicating boredom or sleepiness; "a yawning congregation")

Sense 6
open -- (not having been filled; "the job is still open")
       => available (vs. unavailable) -- (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")

Sense 7
open -- (accessible to all; "open season"; "an open economy")
       => unrestricted (vs. restricted) -- (not subject to or subjected to restriction)

Sense 8
assailable, undefendable, undefended, open -- (not defended or capable of being defended; "an open city"; "open to attack")
       => vulnerable (vs. invulnerable) -- (susceptible to attack; "a vulnerable bridge")

Sense 9
loose, open -- ((of textures) full of small openings or gaps; "an open texture"; "a loose weave")
       => coarse (vs. fine), harsh -- (of textures that are rough to the touch or substances consisting of relatively large particles; "coarse meal"; "coarse sand"; "a coarse weave")

Sense 10
open -- (having no protecting cover or enclosure; "an open boat"; "an open fire"; "open sports cars")
       => unenclosed (vs. enclosed) -- (not closed in our surrounded or included; "an unenclosed porch"; "unenclosed common land")

Sense 11
open (vs. closed) -- ((set theory) of an interval that contains neither of its endpoints)

Sense 12
open, undecided, undetermined, unresolved -- (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 (vs. settled) -- (still in doubt; "an unsettled issue"; "an unsettled state of mind")

Sense 13
open, opened -- (not sealed or having been unsealed; "the letter was already open"; "the opened package lay on the table")
       => unsealed (vs. sealed) -- (not closed or secured with or as if with a seal; "unsealed goods"; "the letter arrived unsealed")

Sense 14
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 (vs. constricted) -- (not constricted physically or by extension psychologically; "healthy unconstricted arteries")

Sense 15
receptive (vs. unreceptive), open -- (ready or willing to receive favorably; "receptive to the proposals")
       => acceptive, acceptant -- (accepting willingly; "acceptive of every new idea"; "an acceptant type of mind")
       => admissive -- (characterized by or allowing admission; "an Elizabethan tragedy admissive of comic scenes")
       => assimilative -- (capable of mentally absorbing ; "assimilative processes", "assimilative capacity of the human mind")
       => hospitable -- (having an open mind; "hospitable to new ideas"; "open to suggestions")

Sense 16
overt (vs. covert), open -- (open and observable; not secret or hidden; "an overt lie"; "overt hostility"; "overt intelligence gathering"; "open ballots")
       => bald, barefaced -- (with no effort to conceal; "a barefaced lie")
       => naked, raw -- (devoid of elaboration or diminution or concealment; bare and pure; "naked ambition"; "raw fury"; "you may kill someone someday with your raw power")
       => undisguised -- (plain to see; "undisguised curiosity")
       => visible -- (obvious to the eye; "a visible change of expression")
          Also See-> explicit#1, expressed#2; unconcealed#1; public#1

Sense 17
open (prenominal) -- (not requiring union membership; "an open shop employs nonunion workers")
       => nonunion (vs. union) -- (not belonging to or not allowing affiliation with a trade union; "nonunion carpenters"; "a nonunion contractor")

Sense 18
capable, open, subject -- (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 (vs. unsusceptible) -- ((often followed by `of' or `to') yielding readily to or capable of; "susceptible to colds"; "susceptible of proof")

Sense 19
clear, open -- (affording free passage or view; "a clear view"; "a clear path to victory"; "open waters"; "the open countryside")
       => unobstructed (vs. obstructed) -- (free from impediment or obstruction or hindrance; "an unobstructed view")

Sense 20
candid, open, heart-to-heart -- (openly straightforward and direct without reserve or secretiveness; "his candid eyes"; "an open and trusting nature"; "a heart-to-heart talk")
       => ingenuous (vs. disingenuous), artless -- (characterized by an inability to mask your feelings; not devious; "an ingenuous admission of responsibility")

Sense 21
open -- (ready for business; "the stores are open")
       => active (vs. inactive) -- (full of activity or engaged in continuous activity; "an active seaport"; "an active bond market"; "an active account")