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keystone
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keystone


the keystone of campaign reform was the ban on soft money
  something of importance upon which other things depend

or:

architecture or masonry:  the central building block at the top of an arch or vault (providing pressure to lock the other blocks into place)
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keystone keystones
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Samples:
  • the keystone of campaign reform was the ban on soft money
  • Friendship with Canada is the keystone in the arch of America’s foreign relations.
  • The arch was reinforced with steel because the keystone was deteriorating.
  • According to lore, the brotherhood had created a keystone—an engraved tablet that revealed the final resting place of the brotherhood’s greatest secret...
    Dan Brown  --  The Da Vinci Code

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  • There were plastic bags filled with Keystone beer cans all over the house and the tiny front yard.
    Scott Pratt  --  An Innocent Client
  • It was the keystone that had held the whole cathedral up.
    Donna Tartt  --  The Goldfinch
  • There was a general shout of outrage, and then we recommended the building of Leper’s triumphal arch around Brinker’s keystone.
    John Knowles  --  A Separate Peace
  • He liked the Pennsylvania keystone, which my father had had engraved with my initials—my favorite was the tiny bike—and he pulled it off and placed it in his pocket.
    Alice Sebold  --  The Lovely Bones
  • To him, Judge Scott was the keystone in the arch of injustice, and upon Judge Scott he emptied the vials of his wrath and hurled the threats of his revenge yet to come.
    Jack London  --  White Fang
  • As I’m sure you are aware, Eragon is the keystone of our hopes.
    Christopher Paolini  --  Brisingr

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  • The door was studded, and the keystone of the arch was a mask.
    Thomas Hardy  --  The Mayor of Casterbridge
  • She sat looking at the two thin, delicate, almost weightless drops of gold in the palm of her hand, knowing that the whole of the Taggart Transcontinental system had rested upon them, that this had been the keystone supporting all the keystones, all the arches, all the girders of the Taggart track, the Taggart Bridge, the Taggart Building…… She shook her head and slipped the coins back into his hand.
    Ayn Rand  --  Atlas Shrugged
  • What was his death but the keystone of a gloomy arch removed, and now the arch begins to fall in a thousand fragments, each crushing and mangling piecemeal!
    Charles Dickens  --  Bleak House
  • The keystone of the state’s case was the six-page Plan of Action confiscated in the Rivonia raid.
    Nelson Mandela  --  Long Walk to Freedom
  • The keystone of the arch crashed almost on their heels, and the wall above crumbled, and fell in ruin.
    J.R.R. Tolkien  --  The Return of the King
  • It was the keystone to the whole structure of deception, the parallax that would draw Carlos out of position into their sights.
    Robert Ludlum  --  The Bourne Identity
  • BUT," and now he paused and looked fixedly at Belknap, "and this is the keystone of the whole thing—if this won’t hold water, then down we go!
    Theodore Dreiser  --  An American Tragedy
  • They are all important, but they are not the keystone.
    Robert A. Heinlein  --  Tunnel In the Sky
  • In my day it was the keystone to knowledge.
    Eudora Welty  --  One Writer’s Beginnings
  • So we keep Alex away from our keystone, as far away from us as possible, but we give him our marker.
    Robert Ludlum  --  The Bourne Ultimatum
  • The archway was forty feet from cobble to keystone and still dwarfed by the walls, which rose a hundred feet above even the tallest trees.
    Henry H. Neff  --  The Maelstrom
  • Like a bolt of lightning, the crack struck and shattered the keystone above the doors to the building, showering the floor below with pebbles.
    Christopher Paolini  --  Inheritance
  • Whilst he fulfils the purpose for which she made him, he is welcome to his dreams, his follies, his ideals, his heroisms, provided that the keystone of them all is the worship of woman, of motherhood, of the family, of the hearth.
    George Bernard Shaw  --  Man And Superman
  • Twenty million Montags running, running like an ancient flickery Keystone Comedy, cops, robbers, chasers and the chased, hunters and hunted, he had seen it a thousand times.
    Ray Bradbury  --  Fahrenheit 451
  • It always seemed exciting to me when I met somebody from exotic places like Keystone or Iaeger, mining towns on the other side of the county.
    Homer Hickam  --  October Sky
  • We were the Keystone Kops of the sea.
    Jack Gantos  --  Hole in My Life
  • In the centre lay a leather mattress, placed almost flat upon the ground, over which hung a strap provided with a buckle, attached to a brass ring in the mouth of a flat-nosed monster carved in the keystone of the vault.
    Victor Hugo  --  The Hunchback of Notre Dame
  • Keystone should be so lucky.
    Robert Ludlum  --  The Bourne Supremacy
  • She must have been feeling like a Keystone Kop.
    Michael Lewis  --  The Blind Side
  • I smiled at the idea of Diane and Mary Alice lifting up the RSA, his feet doing a wild walk in the air like a Keystone Kop.
    Alice Sebold  --  Lucky
  • As the International Journal of Gynecology & Obstetrics put it in an editorial, emergency obstetric care is the "keystone in the arch of safe motherhood.
    Nicholas D. Kristof  --  Half the Sky
  • The supplier, an executive at Keystone Foods, ordered a group of technicians to get to work in the lab, where they were soon joined by food scientists from Mc-Donald’s.
    Eric Schlosser  --  Fast Food Nation
  • The whole castle groaned, and from the damaged window to the broken keystone, the front of the keep began to lean outward.
    Christopher Paolini  --  Inheritance
  • "When we possess the keystone," the Teacher said, "we will be only one step away."
    Dan Brown  --  The Da Vinci Code
  • The keystone is here in Paris.
    Dan Brown  --  The Da Vinci Code
  • "Silas has located the keystone," the caller said.
    Dan Brown  --  The Da Vinci Code
  • The heathens used a house of God to conceal their keystone.
    Dan Brown  --  The Da Vinci Code
  • She is a woman of the cloth, and it is not her fault the brotherhood chose her church as a hiding place for their keystone.
    Dan Brown  --  The Da Vinci Code
  • The brotherhood hid the keystone at the Rose Line.
    Dan Brown  --  The Da Vinci Code
  • Earlier tonight, when Silas told the Teacher that the Priory keystone was hidden inside SaintSulpice, the Teacher had sounded doubtful.
    Dan Brown  --  The Da Vinci Code
  • The Priory keystone has been said to lie ’beneath the Sign of the Rose.’
    Dan Brown  --  The Da Vinci Code
  • The keystone is hidden beneath the Rose Line.
    Dan Brown  --  The Da Vinci Code
  • He had expected the keystone to be a map, or a complex series of directions, perhaps even encoded.
    Dan Brown  --  The Da Vinci Code
  • The keystone, however, bore the simplest of inscriptions.
    Dan Brown  --  The Da Vinci Code
  • Opus Dei is searching for the keystone.
    Dan Brown  --  The Da Vinci Code
  • Tell me where the keystone is.
    Dan Brown  --  The Da Vinci Code
  • The keystone.
    Dan Brown  --  The Da Vinci Code
  • Silas was looking forward to finding the keystone and giving it to the Teacher so they could recover what the brotherhood had long ago stolen from the faithful.
    Dan Brown  --  The Da Vinci Code
  • Each had told Silas the exact same thing—that the keystone was ingeniously hidden at a precise location inside one of Paris’s ancient churches—the Eglise de Saint-Sulpice.
    Dan Brown  --  The Da Vinci Code
  • The keystone.
    Dan Brown  --  The Da Vinci Code
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Associated words [difficulty]:   keystone [5]
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Most commonly used in these subjects:   Architecture, Nature & Ecology, Sports
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