open (Noun) — A clear or unobstructed space or expanse of land or water. ex. "finally broke out of the forest into the open"
open (Noun) — Where the air is unconfined. ex. "the concert was held in the open air" ex. "camping in the open"
open (Noun) — A tournament in which both professionals and amateurs may play.
open (Noun) — Information that has become public. ex. "all the reports were out in the open"
open (Verb) — Cause to allow entrance or exit; allow entry after being shut. ex. "Mary opened the car door"
open (Verb) — Start to operate or function or cause to start operating or functioning. ex. "open a business"
open (Verb) — Become open. ex. "The door opened"
open (Verb) — Begin or set in action, of meetings, speeches, recitals, etc.. ex. "He opened the meeting with a long speech"
open (Verb) — Spread out or open from a closed or folded state. ex. "open the map"
open (Verb) — Make available. ex. "This opens up new possibilities"
open (Verb) — Become available. ex. "an opportunity opened up"
open (Verb) — Have an opening, passage or outlet. ex. "The bedrooms open into the hall"
open (Verb) — (chess) make the opening move. ex. "Kasparov opened with a standard opening"
open (Verb) — Provide entry or access to. ex. "the door opens to the patio"
open (Verb) — Display the contents of a file or start an application as on a computer.
open (Adjective) — Affording unobstructed entrance and exit; not shut or closed. ex. "they left the door open" ex. "an open door"
open (Adjective) — Affording free passage or access. ex. "open drains" ex. "the road is open to traffic" ex. "open ranks"
open (Adjective) — With no protection or shield. ex. "open to the weather" ex. "an open wound"
open (Adjective) — Available to or viewable by the public. ex. "an open protest" ex. "an open letter to the editor"
open (Adjective) — Used of mouth or eyes. ex. "keep your eyes open"
open (Adjective) — Not having been filled. ex. "the job is still open"
open (Adjective) — Accessible to all. ex. "open season" ex. "an open economy"
open (Adjective) — Not defended or capable of being defended. ex. "an open city" ex. "open to attack"
open (Adjective) — (of textures) full of small openings or gaps. ex. "an open texture"
open (Adjective) — Having no protecting cover or enclosure. ex. "an open boat" ex. "an open fire" ex. "open sports cars"
open (Adjective) — (set theory) of an interval that contains neither of its endpoints.
open (Adjective) — Not brought to a conclusion; subject to further thought. ex. "an open question"
open (Adjective) — Not sealed or having been unsealed. ex. "the letter was already open"
open (Adjective) — Without undue constriction as from e.g. tenseness or inhibition. ex. "the clarity and resonance of an open tone" ex. "her natural and open response"
open (Adjective) — Ready or willing to receive favourably. ex. "open to the proposals"
open (Adjective) — Observable; not secret or hidden. ex. "open ballots"
open (Adjective) — Not requiring union membership. ex. "an open shop employs nonunion workers"
open (Adjective) — Possibly accepting or permitting. ex. "open to interpretation" ex. "an issue open to question"
open (Adjective) — Affording free passage or view. ex. "open waters" ex. "the open countryside"
open (Adjective) — Openly straightforward and direct without reserve or secretiveness. ex. "an open and trusting nature"
open (Adjective) — Ready for business. ex. "the stores are open"