n. information that has become public; "all the reports were out in the open"; "the facts had been brought to the surface"

n. a tournament in which both professionals and amateurs may play

n. a clear or unobstructed space or expanse of land or water; "finally broke out of the forest into the open"

n. a feature on a switch having the value "on"

v. have an opening or passage or outlet; "The bedrooms open into the hall"

v. become available; "an opportunity opened up"

v. make the opening move; "Kasparov opened with a standard opening"

v. become open; "The door opened"

v. spread out or open from a closed or folded state; "open the map"; "spread your arms"

v. display the contents of a file or start an application as on a computer

v. start to operate or function or cause to start operating or functioning; "open a business"

v. to prepare a file for reading and writing

adj. ready for business; "the stores are open"

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

adj. "unfolded wings"; "an open newspaper"

adj. affording unobstructed entrance and exit; not shut or closed; "an open door"; "they left the door open"

adj. affording free passage or access; "open drains"; "the road is open to traffic"; "open ranks"

adj. having no protecting cover or enclosure; "an open boat"; "an open fire"; "open sports cars"

adj. (music) used of string or hole or pipe of instruments

adj. (set theory) of an interval that contains neither of its endpoints

adj. open and observable; not secret or hidden; "an overt lie"; "overt hostility"; "overt intelligence gathering"; "open ballots"

adj. open to or in view of all; "an open protest"; "an open letter to the editor"

adj. with no protection or shield; "the exposed northeast frontier"; "open to the weather"; "an open wound"

adj. ready for business; "the stores are open"

adj. accessible to all; "open season"; "an open economy"

adj. not sealed or having been unsealed; "the letter was already open"; "the opened package lay on the table"

adj. easily visible; "she turned her back on her rival in full view of everyone"

adj. (of textures) full of small openings or gaps; "an open texture"; "a loose weave"

adj. not requiring union membership; "an open shop employs nonunion workers"