open (adj.)

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

    [ Syn: unfastened ]

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

  3. ready or willing to receive favorably; receptive to the proposals

    [ Syn: receptive ]

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

    [ Syn: overt ]

  5. affording free passage or access; open drains; the road is open to traffic; open ranks'

  6. used of mouth or eyes; keep your eyes open; his mouth slightly opened

    [ Syn: opened ]

    open (n.)

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

    [ Syn: clear ]

  2. where the air is unconfined; he wanted to get outdoors a little; the concert was held in the open air; camping in the open

    [ Syn: outdoors , out-of-doors , open air ]

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

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

    [ Syn: surface ]

    open (adj.)

  1. having no protecting cover or enclosure; an open boat; an open fire; open sports cars'

  2. not brought to a conclusion; subject to further thought; an open question; our position on this bill is still undecided; our lawsuit is still undetermined

    [ Syn: undecided , undetermined , unresolved ]

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

    [ Syn: opened ]

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

  5. not requiring union membership; an open shop employs nonunion workers'

  6. possibly accepting or permitting; a passage capable of misinterpretation; open to interpretation; an issue open to question; the time is fixed by the director and players and therefore subject to much variation

    [ Syn: capable , subject ]

  7. affording free passage or view; a clear view; a clear path to victory; open waters; the open countryside

    [ Syn: clear ]

  8. openly straightforward and direct without reserve or secretiveness; his candid eyes; an open and trusting nature; a heart-to-heart talk

    [ Syn: candid , heart-to-heart ]

  9. ready for business; the stores are open'

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

    [ Syn: exposed ]

  11. open to or in view of all; an open protest; an open letter to the editor'

  12. not having been filled; the job is still open'

  13. accessible to all; open season; an open economy'

  14. not defended or capable of being defended; an open city; open to attack

    [ Syn: assailable , undefendable , undefended ]

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

    [ Syn: loose ]

    open (v.)

  1. cause to open or to become open; Mary opened the car door

    [ Syn: open up ]

  2. afford access to; the door opens to the patio; The French doors give onto a terrace

    [ Syn: afford , give ]

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

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

    [ Syn: open up ]

  5. become open; The door opened

    [ Syn: open up ]

  6. begin or set in action, of meetings, speeches, recitals, etc.; He opened the meeting with a long speech'

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

    [ Syn: unfold , spread , spread out ]

  8. make available; This opens up new possibilities

    [ Syn: open up ]

  9. become available; an opportunity opened up

    [ Syn: open up ]

  10. have an opening or passage or outlet; The bedrooms open into the hall'

  11. make the opening move; Kasparov opened with a standard opening'

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.