OPEN

I. adjective (~er; ~est) Etymology: Middle English, from Old English; akin to Old High German offan ~, Old English ūp up Date: before 12th century having no enclosing or confining barrier ; accessible on all or nearly all sides , 2. a. being in a position or adjustment to permit passage ; not shut or locked , having a barrier (as a door) so adjusted as to allow passage , having the lips parted , not buttoned or zipped , 3. completely free from concealment ; exposed to general view or knowledge , exposed or vulnerable to attack or question ; subject , being an operation or surgical procedure in which an incision is made such that the tissues are fully exposed, 4. not covered with a top, roof, or lid , having no protective covering , not restricted to a particular group or category of participants , enterable by both amateur and professional contestants , enterable by a registered voter regardless of political affiliation , fit to be traveled over ; presenting no obstacle to passage or view , having the parts or surfaces laid out in an expanded position ; spread out ; unfolded , 8. a. low 13, formed with the tongue in a lower position , b. having clarity and resonance unimpaired by undue tension or constriction of the throat , produced by an ~ string or on a wind instrument by the lip without the use of slides, valves, or keys, 9. available to follow or make use of , not taken up with duties or engagements , not finally decided ; subject to further consideration , available for a qualified applicant ; vacant , remaining available for use or filling until canceled , available for future purchase , available for breeding ; not now pregnant , not proprietary ; available to third party developers , 10. characterized by ready accessibility and usually generous attitude: as, generous in giving, willing to hear and consider or to accept and deal with ; responsive , free from reserve or pretense ; frank , accessible to the influx of new factors (as foreign goods) , 11. having ~ings, interruptions, or spaces , being porous and friable , sparsely distributed ; scattered , having components separated by a space in writing or printing (as opaque projector ), not made up of a continuous closed circuit of channels , 12. not stopped at the top, not stopped by the finger, being in operation , 14. a. characterized by lack of effective regulation of various commercial enterprises , not repressed by legal controls , free from checking or hampering restraints , relatively unguarded by opponents , having been ~ed by a first ante, bet, or bid , characterized by sparing use especially of the comma, 17. containing none of its endpoints , being a set or composed of sets each point of which has a neighborhood all of whose points are contained in the set , 18. being an incomplete electrical circuit, not allowing the flow of electricity , having insufficient mass to halt expansion gravitationally, see: frank ~ adverb ~ly adverb ~ness noun II. verb (~ed; ~ing) Date: before 12th century transitive verb 1. to move (as a door) from a closed position, to make available for entry or passage by turning back (as a barrier) or removing (as a cover or an obstruction), 2. to make available for or active in a regular function , to make accessible for a particular purpose , to initiate access to (a computer file) prior to use, 3. to disclose or expose to view ; reveal , to make more discerning or responsive ; enlighten , to bring into view or come in sight of by changing position, 4. to make an ~ing in , to loosen and make less compact , to spread out ; unfold , 6. to enter upon ; begin , to commence action in a card game by making (a first bid), putting a first bet in (the pot), or playing (a card or suit) as first lead, to restore or recall (as an order) from a finally determined state to a state in which the parties are free to prosecute or oppose, intransitive verb to become ~ , 2. to spread out ; expand , to become disclosed , to become enlightened or responsive, to give access , speak out 2 , 6. to begin a course or activity , to make a bet, bid, or lead in commencing a round or hand of a card game, to provide the ~ing performance of a show before the main event, ~ability noun ~able adjective III. noun Date: 13th century ~ing , ~ and unobstructed space: as, ~ air , ~ water, an ~ contest, competition, or tournament, a public or unconcealed state or position