What is open?

  • (verb): Start to operate or function or cause to start operating or functioning.
    Example: "Open a business"
    Synonyms: open up
    See also — Additional definitions below

Some articles on open:

2006 WTA Tour - Schedule - Calendar and Other Changes
... The French Open main draw began play on Sunday rather than the traditional Monday start, making it a 15-day tournament ... Two new events were created the Bangalore Open in Bangalore, India, replacing the previous event held in Hyderabad and the Anda Open in Tel Aviv, Israel—later ... The Sony Ericsson Open was the first event to utilise the new technology ...
Grothendieck Topology
... Continuing the previous example, a sieve S on an open set U in O(X) will be a covering sieve if and only if the union of all the open sets V for which S(V) is nonempty ...
List Of Computing And IT Abbreviations - O
... of Structured Information Standards OAT—Operational Acceptance Testing OBSAI—Open Base Station Architecture Initiative ODBC—Open DataBase Connectivity OEM—Original Equipment ...
2002 Commonwealth Games Results - Shooting - Open
... van Tonder South Africa (RSA) Fullbore Rifle Queens Prize – Open Pair David Calvert and Martin Millar Northern Ireland (NIR) Peter Bramley David Dodds South Africa (RS ...
Nuclear Technology - Civilian Uses - Commercial Applications
... One is closed and serves for comparison, the other is open to ambient air it has a gridded electrode ... When smoke enters the open chamber, the current is disrupted as the smoke particles attach to the charged ions and restore them to a neutral electrical state ... This reduces the current in the open chamber ...

More definitions of "open":

  • (adj): Without undue constriction as from e.g. tenseness or inhibition.
    Example: "The clarity and resonance of an open tone"; "her natural and open response"
  • (adj): Not secret.
    Example: "Open plans"; "an open ballot"
  • (adj): Relatively empty of and unobstructed by fences or hedges or headlands or shoals.
    Example: "In open country"; "the open countryside"; "open waters"; "on the open seas"
  • (adj): Not having been filled.
    Example: "The job is still open"
  • (verb): Make the opening move.
    Example: "Kasparov opened with a standard opening"
  • (adj): Ready for business.
    Example: "The stores are open"
  • (adj): Accessible to all.
    Example: "Open season"; "an open economy"
  • (adj): Without any attempt at concealment; completely obvious.
    Example: "Open disregard of the law"; "open family strife"; "open hostility"
    Synonyms: blatant, blazing, conspicuous
  • (adj): Receptive to new ideas.
    Example: "An open mind"; "open to new ideas"
  • (adj): Open and observable; not secret or hidden.
    Synonyms: overt
  • (noun): A tournament in which both professionals and amateurs may play.
  • (adj): Affording unobstructed entrance and exit; not shut or closed.
    Example: "An open door"; "they left the door open"
    Synonyms: unfastened
  • (adj): Not requiring union membership.
    Example: "An open shop employs nonunion workers"
  • (adj): Lax in enforcing laws.
    Example: "An open town"
    Synonyms: wide-open, lawless
  • (adj): Having no protecting cover or enclosure.
    Example: "An open boat"; "an open fire"; "open sports cars"
  • (adj): Used of mouth or eyes.
    Example: "Keep your eyes open"
    Synonyms: opened
  • (verb): Spread out or open from a closed or folded state.
    Example: "Open the map"
    Synonyms: unfold, spread, spread out
  • (adj): (of textures) full of small openings or gaps.
    Example: "An open texture"
    Synonyms: loose
  • (verb): Become open.
    Synonyms: open up
  • (verb): Begin or set in action, of meetings, speeches, recitals, etc..
    Example: "He opened the meeting with a long speech"
  • (verb): Cause to open or to become open.
    Synonyms: open up
  • (adj): Affording free passage or view.
    Synonyms: clear
  • (verb): Have an opening or passage or outlet.
    Example: "The bedrooms open into the hall"
  • (adj): Open to or in view of all.
    Example: "An open protest"; "an open letter to the editor"
  • (verb): Become available.
    Synonyms: open up
  • (adj): Openly straightforward and direct without reserve or secretiveness.
    Example: "An open and trusting nature"
    Synonyms: candid, heart-to-heart
  • (adj): 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 points.
  • (verb): Display the contents of a file or start an application as on a computer.
  • (adj): Sincere and free of reserve in expression.
    Example: "Please be open with me"
  • (noun): Where the air is unconfined.
    Example: "The concert was held in the open air"; "camping in the open"
    Synonyms: outdoors, out-of-doors, open air
  • (adj): Possibly accepting or permitting.
    Example: "Open to interpretation"; "an issue open to question"
    Synonyms: capable, subject
  • (adj): Affording free passage or access.
    Example: "Open drains"; "the road is open to traffic"; "open ranks"
  • (adj): Not sealed or having been unsealed.
    Example: "The letter was already open"
    Synonyms: opened
  • (noun): Information that has become public.
    Example: "All the reports were out in the open"
    Synonyms: surface
  • (noun): A clear or unobstructed space or expanse of land or water.
    Example: "Finally broke out of the forest into the open"
    Synonyms: clear
  • (verb): Make available.
    Synonyms: open up
  • (adj): With no protection or shield.
    Example: "Open to the weather"; "an open wound"
    Synonyms: exposed
  • (adj): Opened out.
    Example: "An open newspaper"
  • (adj): Used of string or hole or pipe of instruments.
    Synonyms: unstopped

Famous quotes containing the word open:

    Those who guard their mouths preserve their lives; those who open wide their lips come to ruin.
    Bible: Hebrew, Proverbs 13:3.

    ... men need women more than women need men; and so, aware of this fact, man has sought to keep woman dependent upon him economically as the only method open to him of making himself necessary to her.
    Elizabeth Gould Davis (b. 1910)

    It’s fairly obvious that American education is a cultural flop. Americans are not a well-educated people culturally, and their vocational education often has to be learned all over again after they leave school and college. On the other hand, they have open quick minds and if their education has little sharp positive value, it has not the stultifying effects of a more rigid training.
    Raymond Chandler (1888–1959)