noun: a tournament in which both professionals and amateurs may play
noun: a clear or unobstructed space or expanse of land or water
Example: "Finally broke out of the forest into the open"
noun: where the air is unconfined
Example: "The concert was held in the open air"
verb: display the contents of a file or start an application as on a computer
verb: begin or set in action, of meetings, speeches, recitals, etc.
Example: "He opened the meeting with a long speech"
verb: start to operate or function or cause to start operating or functioning
Example: "Open a business"
verb: have an opening or passage or outlet
Example: "The bedrooms open into the hall"
verb: make available
Example: "This opens up new possibilities"
verb: become available
Example: "An opportunity opened up"
verb: make the opening move
Example: "Kasparov opened with a standard opening"
verb: cause to open or to become open
Example: "Mary opened the car door"
verb: become open
Example: "The door opened"
verb: afford access to
Example: "The door opens to the patio"
verb: spread out or open from a closed or folded state
Example: "Open the map"
adjective: sincere and free of reserve in expression
Example: "Please be open with me"
adjective: lax in enforcing laws
Example: "An open town"
adjective: without undue constriction as from e.g. tenseness or inhibition
Example: "The clarity and resonance of an open tone"
adjective: affording unobstructed entrance and exit; not shut or closed
Example: "An open door"
adjective: affording free passage or access
Example: "Open drains"
adjective: used of mouth or eyes
Example: "Keep your eyes open"
adjective: having no protecting cover or enclosure
Example: "An open boat"
adjective: 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
adjective: open to or in view of all
Example: "An open protest"
adjective: accessible to all
Example: "Open season"
adjective: not sealed or having been unsealed
Example: "The letter was already open"
adjective: not secret
Example: "Open plans"
adjective: not brought to a conclusion; subject to further thought
Example: "An open question"
adjective: ready for business
Example: "The stores are open"
adjective: not having been filled
Example: "The job is still open"
adjective: receptive to new ideas
Example: "An open mind"
adjective: opened out
Example: "An open newspaper"
adjective: relatively empty of and unobstructed by fences or hedges or headlands or shoals
Example: "In open country"
adjective: openly straightforward and direct without reserve or secretiveness
Example: "An open and trusting nature"
adjective: affording free passage or view
adjective: used of string or hole or pipe of instruments
adjective: open and observable; not secret or hidden
adjective: with no protection or shield
Example: "Open to the weather"
adjective: (of textures) full of small openings or gaps
Example: "An open texture"
adjective: possibly accepting or permitting
Example: "Open to interpretation"
adjective: without any attempt at concealment; completely obvious
Example: "Open disregard of the law"
adjective: not defended or capable of being defended