open : Idioms & Phrases


break open

  • verb open with force
    • He broke open the picnic basket
  • verb come open suddenly and violently, as if from internal pressure
    split; burst.
    • The bubble burst
  • verb erupt or intensify suddenly
    flare; erupt; flare up; burst out; irrupt.
    • Unrest erupted in the country
    • Tempers flared at the meeting
    • The crowd irrupted into a burst of patriotism
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chess opening

  • noun a recognized sequence of moves at the beginning of a game of chess
    opening.
    • he memorized all the important chess openings
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click open

  • verb open with a clicking sound
    • These keys have clicked open many doors
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Counter opening

  • an aperture or vent on the opposite side, or in a different place. -
Webster 1913

drop open

  • verb open involuntarily
    drop open.
    • His mouth dropped open
    • Her jaw dropped
WordNet

fall open

  • verb open involuntarily
    drop open.
    • His mouth dropped open
    • Her jaw dropped
WordNet

fly open

  • verb come open suddenly
    • the doors flew open in the strong gust
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Gill opening, ∨ Gill slit

  • (Anat.), an opening behind and below the head of most fishes, and some amphibians, by which the water from the gills is discharged. In most fishes there is a single opening on each side, but in the sharks and rays there are five, or more, on each side.
Webster 1913

hold open

  • verb retain rights to
    save; keep; hold open.
    • keep my job for me while I give birth
    • keep my seat, please
    • keep open the possibility of a merger
WordNet

In general (or open) audience

  • publicly.
Webster 1913

In open

  • in full view; without concealment; openly. Obs.
Webster 1913

keep one's eyes open

  • verb pay attention; be watchful
    keep one's eyes skinned; keep one's eyes peeled.
    • Keep your eyes peeled for any policemen
WordNet

keep open

  • verb retain rights to
    save; keep; hold open.
    • keep my job for me while I give birth
    • keep my seat, please
    • keep open the possibility of a merger
WordNet

Letters patent, overt, ∨ open

  • (Eng. Law), a writing executed and sealed, by which power and authority are granted to a person to do some act, or enjoy some right; as, letters patent under the seal of England.
Webster 1913

neck opening

  • noun an opening in a garment for the neck of the wearer; a part of the garment near the wearer's neck
    neck.
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open account

  • noun credit extended by a business to a customer
    credit account; charge account.
  • noun an unpaid credit order
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open air

  • noun where the air is unconfined
    out-of-doors; open; outdoors.
    • he wanted to get outdoors a little
    • the concert was held in the open air
    • camping in the open
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Open chain

  • noun a chain of atoms in a molecule whose ends are not joined to form a ring
WordNet
  • . (Chem.) See Closed chain, under Chain.
Webster 1913

Open circuit

  • noun an incomplete electrical circuit in which no current flows
WordNet
  • (Elec.), a conducting circuit which is incomplete, or interrupted at some point; opposed to an uninterrupted, or closed circuit.
Webster 1913

Open communion

  • communion in the Lord's supper not restricted to persons who have been baptized by immersion. Cf. Close communion, under Close, a.
Webster 1913

Open diapason

  • (Mus.), a certain stop in an organ, in which the pipes or tubes are formed like the mouthpiece of a flageolet at the end where the wind enters, and are open at the other end.
Webster 1913

open door

  • noun the policy of granting equal trade opportunities to all countries
    open door.
  • noun freedom of access
    • he maintained an open door for all employees
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open fire

  • verb start firing a weapon
    fire.
WordNet

open fireplace

  • noun an open recess in a wall at the base of a chimney where a fire can be built
    hearth; fireplace.
    • the fireplace was so large you could walk inside it
    • he laid a fire in the hearth and lit it
    • the hearth was black with the charcoal of many fires
WordNet

Open flank

  • (Fort.), the part of the flank covered by the orillon.
Webster 1913

open fracture

  • noun bone fracture associated with lacerated soft tissue or an open wound
    compound fracture.
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open frame

  • noun any frame in which a bowler fails to make a strike or spare
    break.
    • the break in the eighth frame cost him the match
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Open harmony

  • (Mus.), harmony the tones of which are widely dispersed, or separated by wide intervals.
Webster 1913

Open hawse

  • (Naut.), a hawse in which the cables are parallel or slightly divergent. Cf. Foul hawse, under Hawse.
Webster 1913

Open hearth

  • (Metal.), the shallow hearth of a reverberatory furnace.
Webster 1913

open house

  • noun an informal party of people with hospitality for all comers
WordNet

open interval

  • noun an interval that does not include its endpoints
    unbounded interval.
WordNet

open letter

  • noun a letter of protest; addressed to one person but intended for the general public
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open marriage

  • noun a marriage in which each partner is free to enter into extraneous sexual relationships without guilt or jealousy from the other
WordNet

Open newel

  • . (Arch.) See Hollow newel, under Hollow.
Webster 1913

open order

  • noun a military formation leaving enough space between ranks to allow an inspecting officer to pass
WordNet

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.
Webster 1913

open primary

  • noun a primary in which any registered voter can vote (but must vote for candidates of only one party)
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open sandwich

  • noun sandwich without a covering slice of bread
    open sandwich.
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open secret

  • noun something that is supposed to be secret but is generally known
    • their love affair was an open secret
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open sesame

  • noun any very successful means of achieving a result
  • noun a magical command; used by Ali Baba
WordNet

open shop

  • noun a company whose workers are hired without regard to their membership in a labor union
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open sight

  • noun rear gunsight having an open notch instead of a peephole or telescope
WordNet

open society

  • noun a society that allows its members considerable freedom (as in a democracy)
    • America's open society has made it an easy target for terrorists
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open university

  • noun a British university that is open to people without formal academic qualifications and where teaching is by correspondence or broadcasting or summer school
WordNet

open up

  • verb cause to open or to become open
    open.
    • Mary opened the car door
  • verb become available
    open.
    • an opportunity opened up
  • verb make available
    open.
    • This opens up new possibilities
  • verb open up an area or prepare a way
    pioneer.
    • She pioneered a graduate program for women students
  • verb start to operate or function or cause to start operating or functioning
    open.
    • open a business
  • verb become open
    open.
    • The door opened
  • verb talk freely and without inhibition
WordNet

Open vowelconsonant

  • . See Open, a., 9.
Webster 1913

open weave

  • noun a weave in which warp threads never come together, leaving interstices in the fabric
WordNet

open-air

  • adjective satellite in the open air
    alfresco.
    • an alfresco lunch
    • an open-air theater
WordNet
O"pen-air` adjective
Definitions
  1. Taking place in the open air; outdoor; as, an open-air game or meeting.
Webster 1913

open-air market

  • noun a public marketplace where food and merchandise is sold
    open-air market; market square.
WordNet

open-air marketplace

  • noun a public marketplace where food and merchandise is sold
    open-air market; market square.
WordNet

open-and-shut

  • adjective satellite so obvious as to be easily solved or decided
    • an open-and-shut case
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open-angle glaucoma

  • noun glaucoma caused by blockage of the canal of Schlemm; produces gradual loss of peripheral vision
    chronic glaucoma.
    • open-angle glaucoma is the most common type of glaucoma
WordNet

open-chain

  • adjective having an open chain structure
    acyclic.
WordNet

open-class word

  • noun a word to which an independent meaning can be assigned
    content word.
WordNet

open-collared

  • adjective satellite of a shirt; not buttoned at the neck
    • dressed casually in shorts and an open-collared shirt
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open-door policy

  • noun the policy of granting equal trade opportunities to all countries
    open door.
WordNet

open-end credit

  • noun a consumer credit line that can be used up to a certain limit or paid down at any time
    charge account credit; revolving credit.
WordNet

open-end fund

  • noun a regulated investment company with a pool of assets that regularly sells and redeems its shares
    mutual fund company; open-end fund; mutual fund.
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open-end investment company

  • noun a regulated investment company with a pool of assets that regularly sells and redeems its shares
    mutual fund company; open-end fund; mutual fund.
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open-end wrench

  • noun a wrench having parallel jaws at fixed separation (often on both ends of the handle)
    tappet wrench.
WordNet

open-ended

  • adjective satellite without fixed limits or restrictions
    • an open-ended discussion
  • adjective satellite allowing for a spontaneous response
    • an open-ended question
  • adjective satellite allowing for future changes or revisions
    • open-ended agreements
WordNet

open-eyed

  • adjective satellite carefully observant or attentive; on the lookout for possible danger
    vigilant; wakeful; argus-eyed.
    • a policy of open-eyed awareness
    • the vigilant eye of the town watch
    • there was a watchful dignity in the room
    • a watchful parent with a toddler in tow
WordNet
O"pen-eyed` adjective
Definitions
  1. With eyes widely open; watchful; vigilant. Shak.
Webster 1913

open-face sandwich

  • noun sandwich without a covering slice of bread
    open sandwich.
WordNet

Open-front furnace

  • (Metal.), a blast furnace having a forehearth.
Webster 1913

open-handed

O"pen-hand`ed adjective
Definitions
  1. Generous; liberal; munificent. -- O"pen-hand`ed*ness, n. J. S. Mill.
Webster 1913

open-headed

O"pen-head`ed adjective
Definitions
  1. Bareheaded. Obs.
Webster 1913

open-heart surgery

  • noun heart surgery in which the rib cage is spread open, the heart is stopped and blood is detoured through a heart-lung machine while a heart valve or coronary artery is surgically repaired
WordNet

open-hearted

O"pen-heart`ed adjective
Definitions
  1. Candid; frank; generous. Dryden. -- O"pen-heart`ed*ly, adv. -- O"pen-heart`ed*ness, n. Walton.
Webster 1913

open-hearth

  • adjective of or relating to or produced by the open-hearth process
    • open-hearth steel
WordNet

Open-hearth furnace

  • noun a furnace for making steel in which the steel is placed on a shallow hearth and flames of burning gas and hot air play over it
WordNet
  • a reverberatory furnace; esp., a kind of reverberatory furnace in which the fuel is gas, used in manufacturing steel.
Webster 1913

Open-hearth process

  • noun a process for making steel using an open-hearth furnace
WordNet
  • (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.
Webster 1913

Open-hearth steel

  • steel made by an open-hearth process; also called Siemens-Martin steel.
Webster 1913

open-minded

  • adjective satellite ready to entertain new ideas
    • an open-minded curiosity
    • open-minded impartiality
WordNet

open-mouthed

O"pen-mouthed` adjective
Definitions
  1. Having the mouth open; gaping; hence, greedy; clamorous. L'Estrange.
Webster 1913

open-plan

  • adjective satellite (of rooms or buildings) having large rooms with few dividing partitions
WordNet

open-source

  • adjective of or relating to or being computer software for which the source code is freely available
WordNet

Open-timber roof

  • (Arch.), a roof of which the constructional parts, together with the under side of the covering, or its lining, are treated ornamentally, and left to form the ceiling of an apartment below, as in a church, a public hall, and the like.
Webster 1913

opening line

  • noun the first line of a piece of writing (as a newspaper story)
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opening move

  • noun the first of a series of actions
    first step; initiative; opening.
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opening night

  • noun the first performance (as of a theatrical production)
    curtain raising; opening.
    • the opening received good critical reviews
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Spherical opening

  • the magnitude of a solid angle. It is measured by the portion within the solid angle of the surface of any sphere whose center is the angular point.
Webster 1913

The open air

  • the air out of doors.
Webster 1913

To break open

  • to open by breaking. "Open the door, or I will break it open." Shak.
Webster 1913

To fling open

  • to throw open; to open suddenly or with violence; as, to fling open a door.
Webster 1913

To fly open

  • to open suddenly, or with violence.
Webster 1913

To keep open house

  • to entertain friends at all times.
  • to be hospitable.
Webster 1913

To lay one's self open to

  • to expose one's self to, as to an accusation.
Webster 1913

To lay open

  • to open; to uncover; to expose; to reveal.
Webster 1913

To open one's mouth, to speak

  • .
Webster 1913

To open the budget

  • to lay before a legislative body the financial estimates and plans of the executive government.
Webster 1913

To open the trenches

  • (Mil.), to begin to dig or to form the lines of approach.
Webster 1913

To open up

  • to lay open; to discover; to disclose.
Webster 1913

Under open sky

  • out of doors. "Under open sky adored." Milton.
Webster 1913

wide-open

  • adjective satellite open wide
    • left the doors wide-open
  • adjective satellite lax in enforcing laws
    lawless.
    • a wide-open town
WordNet