Copilot
Your everyday AI companion
Explore these results from Bing
  1. Dictionary

    o·pen
    [ˈōp(ə)n]
    adjective
    open (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" · "it was a warm evening and the window was open" · "the door was wide open"
      Opposite:
    2. exposed to the air or to view; not covered:
      "an open fire burned in the grate" · "days without food and water in an open boat"
    3. with the outer edges or sides drawn away from each other; unfolded:
      "the trees had buds and a few open flowers"
      • (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 business
      open to the public
      Opposite:
      • (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"
      • (of a choice, offer, or opportunity) still available; such that people can take advantage of it:
        "the offer is open while supplies last" · "we need to consider what options are left open"
      • with no restrictions on those allowed to attend or participate:
        "each horse had won two open races" · "an open audition was announced"
        Opposite:
      • (of a ticket) not restricted as to day of travel:
        "I have an open ticket, so I can travel any day I like"
      • mathematics
        (of a set) not containing any of its limit points.
    6. (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"
    7. music
      (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.
    8. phonetics
      (of a vowel) produced with a relatively wide opening of the mouth and the tongue kept low.
      • (of a syllable) ending in a vowel.
    9. (of an electrical circuit) having a break in the conducting path.
    verb
    open (verb) · opens (third person present) · opened (past tense) · opened (past participle) · opening (present participle)
    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" · "“Open up!” he said"
      Opposite:
      • (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" · "can we open the presents now?"
      • 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"
      • nautical
        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" · "the tail looks like a fan when it is opened out fully" · "the flowers never opened beyond narrow points"
      Opposite:
      fold 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" · "we opened up a branch in Madrid"
    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" · "Bernard had opened the case"
      • bridge
        make (the first bid) in the auction:
        "West opened 2NT" · "do not open with fewer than twelve points"
    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
    open (noun) · the open (noun) · Open (noun) · Opens (plural noun) · opens (plural noun)
    1. (the open)
      outdoors, especially in an exposed or unprotected setting:
      "guests were sitting in the open on the terrace"
      • (in/into the open)
        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.
    Origin
    Old English open (adjective), openian (verb), of Germanic origin; related to Dutch open and German offen, from the root of the adverb up.
    Translate open to
    No translation found.
    Your Recent Searches
    Words you've searched will appear here
  2. People also ask
    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. ...the new climate of political openness.
    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.
    Open up means the same as open . He opened up a cage and lifted out a 6ft python. [VERB PARTICLE noun] 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. [VERB noun]
    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. ...open sandwiches. An open wound is one from which a liquid such as blood is coming.