
Through the gate,
Wide open and unguarded, Satan passed.
- Milton
His ears are open unto their cry.
- Ps. xxxiv. 15.
- Acts xix. 33.
The service that I truly did his life,
Hath left me open to all injuries.
- Shak.
Each, with open arms, embraced her chosen knight.
- Dryden.
5.Without reserve or false pretense; sincere; characterized by sincerity; unfeigned; frank; also, generous; liberal; bounteous; - applied to personal appearance, or character, and to the expression of thought and feeling, etc.
With aspect open, shall erect his head.
- Pope.
The Moor is of a free and open nature.
- Shak.
The French are always open, familiar, and talkative.
- Addison.
His thefts are too open.
- Shak.
That I may find him, and with secret gaze
Or open admiration him behold.
- Milton.
6.Not of a quality to prevent communication, as by closing water ways, blocking roads, etc.; hence, not frosty or inclement; mild; - used of the weather or the climate; as, an open season; an open winter.
9.(Phon.) Uttered with a relatively wide opening of the articulating organs; - said of vowels; as, the än fär is open as compared with the ā in sāy.
10.(Mus.) Not closed or stopped with the finger; - said of the string of an instrument, as of a violin, when it is allowed to vibrate throughout its whole length.
The open air
the air out of doors.
Open chain
(Chem.) See Closed chain, under Chain.
Open circuit
(Elec.) a conducting circuit which is incomplete, or interrupted at some point; - opposed to an uninterrupted, or closed circuit.
Open communion
Open diapason
Open flank
(Fort.) the part of the flank covered by the orillon.
Open-front furnace
(Metal.) a blast furnace having a forehearth.
Open harmony
(Mus.) harmony the tones of which are widely dispersed, or separated by wide intervals.
Open hawse
(Naut.) a hawse in which the cables are parallel or slightly divergent. Cf. Foul hawse, under Hawse.
Open hearth
(Metal.) the shallow hearth of a reverberatory furnace.
Open-hearth furnace
Open-hearth process
(Steel Manuf.) a process by which melted cast iron is converted into steel by the addition of wrought iron, or iron ore and manganese, and by exposure to heat in an open-hearth furnace; - also called the Siemens-Martin process, from the inventors.
Open-hearth steel
steel made by an open-hearth process; - also called Siemens-Martin steel.
Open newel
(Arch.) See Hollow newel, under Hollow.
Open pipe
(Mus.) a pipe open at the top. It has a pitch about an octave higher than a closed pipe of the same length.
Open-timber roof
Open vowel
See Open, a., 9.
n.1.Open or unobstructed space; clear land, without trees or obstructions; open ocean; open water.
Then we got into the open.
- W. Black.
In open
in full view; without concealment; openly.
- Beau. & Fl.
And all the windows of my heart
I open to the day.
- Whittier.
- Bacon.
Unto thee have I opened my cause.
- Jer. xx. 12.
While he opened to us the Scriptures.
- Luke xxiv. 32.
- Abp. Abbot.
To open one's mouth
To open up
to lay open; to discover; to disclose.
Poetry that had opened up so many delightful views into the character and condition of our "bold peasantry, their country's pride."
- Prof. Wilson.
- Ps. cvi. 17.
Noun1.open - a clear or unobstructed space or expanse of land or water; "finally broke out of the forest into the open"
Synonyms: clear
3.open - a tournament in which both professionals and amateurs may play
4.open - information that has become public; "all the reports were out in the open"; "the facts had been brought to the surface"
Synonyms: surface
Verb1.open - cause to open or to become open; "Mary opened the car door"
Synonyms: open up
shut, close - move so that an opening or passage is obstructed; make shut; "Close the door"; "shut the window"
2.open - start to operate or function or cause to start operating or functioning; "open a business"
Synonyms: open up
close, close down, shut down, fold - cease to operate or cause to cease operating; "The owners decided to move and to close the factory"; "My business closes every night at 8 P.M."
3.open - become open; "The door opened"
Synonyms: open up
shut, close - become closed; "The windows closed with a loud bang"
4.open - begin or set in action, of meetings, speeches, recitals, etc.; "He opened the meeting with a long speech"
5.open - spread out or open from a closed or folded state; "open the map"; "spread your arms"
6.open - make available; "This opens up new possibilities"
Synonyms: open up
7.open - become available; "an opportunity opened up"
Synonyms: open up
8.open - have an opening or passage or outlet; "The bedrooms open into the hall"
9.open - make the opening move; "Kasparov opened with a standard opening"
10.open - afford access to; "the door opens to the patio"; "The French doors give onto a terrace"
Synonyms: afford, give
11.open - display the contents of a file or start an application as on a computer
close - cause a window or an application to disappear on a computer desktop
Adj.1.open - affording unobstructed entrance and exit; not shut or closed; "an open door"; "they left the door open"
Synonyms: unfastened
shut, unopen, closed - not open; "the door slammed shut"
2.open - affording free passage or access; "open drains"; "the road is open to traffic"; "open ranks"
closed - not open or affording passage or access; "the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains"
3.open - with no protection or shield; "the exposed northeast frontier"; "open to the weather"; "an open wound"
Synonyms: exposed
4.open - open to or in view of all; "an open protest"; "an open letter to the editor"
5.open - used of mouth or eyes; "keep your eyes open"; "his mouth slightly opened"
Synonyms: opened
shut, closed - used especially of mouth or eyes; "he sat quietly with closed eyes"; "his eyes were shut against the sunlight"
6.open - not having been filled; "the job is still open"
7.open - accessible to all; "open season"; "an open economy"
8.open - not defended or capable of being defended; "an open city"; "open to attack"
9.open - (of textures) full of small openings or gaps; "an open texture"; "a loose weave"
Synonyms: loose
10.open - having no protecting cover or enclosure; "an open boat"; "an open fire"; "open sports cars"
11.open - opened out; "an open newspaper"
closed - of a curve or surface; having no end points or boundary curves; of a set; having members that can be produced by a specific operation on other members of the same set; of an interval; containing both its endpoints
14.open - not sealed or having been unsealed; "the letter was already open"; "the opened package lay on the table"
Synonyms: opened
16.open - relatively empty of and unobstructed by fences or hedges or headlands or shoals; "in open country"; "the open countryside"; "open waters"; "on the open seas"
17.open - open and observable; not secret or hidden; "an overt lie"; "overt hostility"; "overt intelligence gathering"
Synonyms: overt
18.open - used of string or hole or pipe of instruments
Synonyms: unstopped
19.open - not requiring union membership; "an open shop employs nonunion workers"
Synonyms: capable, subject
21.open - not secret; "open plans"; "an open ballot"
22.open - without any attempt at concealment; completely obvious; "open disregard of the law"; "open family strife"; "open hostility"; "a blatant appeal to vanity"; "a blazing indiscretion"
23.open - affording free passage or view; "a clear view"; "a clear path to victory"
Synonyms: clear
24.open - lax in enforcing laws; "an open town"
Synonyms: lawless, wide-open
26.open - sincere and free of reserve in expression; "Please be open with me"
27.open - receptive to new ideas; "an open mind"; "open to new ideas"
28.open - ready for business; "the stores are open"


3.open - Non-proprietary. An open standard is one which can be used without payment.
Open Protocol Enhanced NetworksSpartan, abandoned, aboveboard, absolute, accented, acceptable, activate, admissible, admissive, admissory, adumbrate, advertise, affirmed, afford, agreeable, air, aloof, altruistic, alveolar, ambiguous, amenable, amiable, announce, announced, apical, apico-alveolar, apico-dental, apparent, approachable, appropriate, arguable, articulated, artless, ascetic, assimilated, at issue, attainable, austere, authentic, available, back, bald, bare, barytone, be a gas, be a hit, begin, beholdable, beneficent, bighearted, bilabial, bill, billow, blatant, bluff, blunt, bomb, bona fide, born yesterday, bounteous, bountiful, branch, branch out, brazen, breach, break, break the seal, bring out, bring to light, broach, broad, broadcast, broken, brought to notice, brusque, cacuminal, campestral, campestrian, central, cerebral, champaign, charitable, check, checked, childlike, chink, circulated, cleared, cleave, come-at-able, commence, common, common knowledge, common property, commonplace, communicate, communicative, conditional, conditioned, confiding, consonant, consonantal, conspicuous, contingent, continuant, contribute, conversable, cordial, cover, crack, crevasse, current, cut, cut apart, cut open, debatable, declared, dehiscent, deltoid, demonstrative, dental, denuded, dependent, depending, deploy, deserted, detached, detectable, develop, diffused, dilate, direct, discernible, disclose, disclosed, disconnected, discontinuous, discover, discrete, dismask, dispart, disperse, display, disposed, disrupt, disseminated, dissimilated, distend, distributed, ditch, divaricate, divide, divulge, dorsal, downright, dramatize, draw the veil, dry, dubious, dubitable, dull, effusive, embark, employable, equivocal, establish, evident, expansive, explain, explicit, expose, exposed to view, extend, extended, extensive, extroverted, fail, fair, fair and square, fan, fan out, fan-shape, fan-shaped, fanlike, fanned, fanning, feature, findable, fissure, fit, flabelliform, flagrant, flare, flared, flaring, flat, flexible, flop, fly open, forsaken, forthright, foursquare, fracture, frankhearted, free hand, free-acting, free-going, free-moving, free-speaking, free-spoken, free-tongued, freehanded, freehearted, friendly, front, full, furnish, furrow, gap, gaping, gapped, gash, generous, genial, genuine, get, get going, get under way, getatable, gettable, giving, glaring, glide, glossal, glottal, godforsaken, good-faith, gossipy, gracious, greathearted, groove, guileless, guttural, handsome, hanging out, hard, headline, heart-to-heart, hearty, heavy, high, hint, hole, homely, homespun, hospitable, humanitarian, idle, illimitable, imbibitory, impart, impressionable, in circulation, in evidence, in full view, in plain sight, in print, in question, in suspense, in the balance, in view, inaugurate, incise, inclined, incoherent, inconsistent, indecisive, influenceable, ingenu, ingenuous, ingestive, initiate, innocent, insight, intonated, introduce, intromissive, intromittent, invitatory, inviting, kick off, labial, labiodental, labiovelar, large, largehearted, lateral, launch, lavish, lax, lay bare, lay open, lean, leisure, leisured, let daylight in, let out, liable, liberal, light, limitless, lingual, liquid, low, made public, magnanimous, make a hit, make known, make plain, malleable, manifest, mantle, matter-of-fact, melodramatize, mid, monophthongal, moot, mount, movable, munificent, muted, naive, naked, narrow, nasal, nasalized, natural, navigable, neat, neighborly, newsy, no strings, nonadherent, nonadhesive, noncoherent, noncohesive, nonimmune, noticeable, obnoxious, observable, obtainable, obvious, occlusive, offer, on the level, on the square, on the up-and-up, ope, open a show, open air, open and aboveboard, open as day, open fire, open to, open to all, open to view, open up, open-handed, open-minded, openhanded, openhearted, operative, out-of-doors, outcropping, outdoors, outgoing, outland, outside, outspoken, outspread, outstretch, outstretched, overgrow, overrun, overspread, oxytone, palatal, palatalized, palpable, part, patent, patulous, peeled, pendent, pending, penetrable, perceivable, perceptible, perfect, perforate, persuadable, persuasible, pervious, pharyngeal, pharyngealized, phonemic, phonetic, phonic, pierce, pitch, pitched, plain-speaking, plain-spoken, plastic, pleasing, plenary, pliable, pliant, posttonic, practicable, predisposed, premiere, present, preview, princely, problematic, proclaimed, procurable, produce, profuse, prone, propagated, proper, prosaic, prosing, provide, public, publish, published, pull out, pure, put on, raise, raise the curtain, ramify, reachable, receivable, receptible, receptive, recipient, recognizable, release, rent, reported, responsive, retired, retroflex, reveal, revealed, rift, ringent, rip, rive, roomy, round, rounded, rupture, rustic, scenarize, securable, seeable, self-revealing, self-revelatory, semiretired, semivowel, sensitive, separate, set in motion, set the stage, set up, severe, shadow, show, show forth, show up, showing, simple, simple-speaking, simplehearted, simpleminded, sincere, single-hearted, single-minded, sit, slash, slit, slot, sober, sociable, soft, sonant, spacious, spare, splay, splayed, splaying, split, spraddle, spraddled, spraddling, sprangle, sprangled, sprangling, sprawl, sprawling, sprawly, spread like wildfire, spread out, spreading, spring open, square, square-dealing, square-shooting, stage, star, stark, start, stated, stintless, stopped, straight, straight-out, straight-shooting, straightforward, stressed, stretch out, stretched-out, strip bare, stripped, strong, suasible, subject, succeed, suggest, suggestible, suitable, surd, susceptible, suspenseful, swayable, swell, swing open, syllabic, talkative, tap, tear, tear open, telecast, televised, tenantless, tense, tenuous, the open, the out-of-doors, theatricalize, thick, throaty, throw open, to be had, to be seen, tonal, tonic, transparent, trench, trustful, trusting, try out, twangy, unaccented, unadhesive, unadorned, unaffected, unbarred, unblock, unblocked, unbolt, unbolted, unbooked, unbound, unbounded, uncertain, unchecked, uncircumscribed, unclassified, uncloak, unclog, unclogged, unclothe, unclouded, uncluttered, uncoherent, uncohesive, uncommitted, unconcealed, unconditional, unconditioned, unconfined, unconnected, unconstrained, uncork, uncounted, uncover, undecided, undefended, undetermined, undisguised, undissembled, undissembling, undo, undrape, unencumbered, unequivocal, unestablished, unfasten, unfastened, unfilled, unfixed, unfolded, unfortified, unfurl, ungrudging, unguarded, unhampered, unhidden, unhindered, unimaginative, unimpeded, uninhabited, uninhibited, unjoined, unkennel, unlatch, unlimited, unlock, unmanned, unmask, unmeasured, unpack, unpeopled, unpopulated, unprotected, unqualified, unrepressed, unreserved, unresolved, unrestrained, unreticent, unroll, unrounded, unscheduled, unscreen, unsealed, unsecretive, unselfish, unsettled, unsheathe, unsheltered, unshrinking, unshroud, unshut, unsigned, unsilent, unsophisticated, unsparing, unstaffed, unstinted, unstinting, unstop, unstopped, unstressed, unsuppressed, unsuspicious, untaken, untenacious, untenanted, untended, untie, untold, unvarnished, unveil, unwary, unwrap, up for grabs, up-and-up, usable, vacant, velar, veritable, viewable, visible, visual, vocalic, vocoid, voiced, voiceless, vowel, vowellike, warm, warmhearted, weak, welcoming, well-known, wide, wide open, wide-open, widely known, widen, widespread, willing, within reach, without, without strings, witnessable, yawning, yield
opaque gem
-- Open --
Open a credit
open account
open air
open box testing
open chain
open circuit
Open communion
Open court
Open Data-link Interface
Open DataBase Connectivity
Open DeathTrap
Open Desktop
Open diapason
Open Distributed Processing
Open Distributed System Architecture
Open Document Architecture

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