Sample Sentences for
keystone
grouped by contextual meaning
(editor-reviewed)

keystone as in:  keystone of our philosophy

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Trust is the keystone of any strong relationship.
keystone = most important part
Show 3 more with this contextual meaning
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    The scientist’s discovery became the keystone of modern genetics.
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    According to lore, the brotherhood had created a map of a stone ... or keystone—an engraved tablet that revealed the final resting place of the brotherhood's greatest secret...  (source)
    keystone = something of importance upon which other things depend
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    It was the keystone that had held the whole cathedral up.†  (source)
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Show 10 more with 2 word variations
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    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.†  (source)
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    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.†  (source)
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    There was a general shout of outrage, and then we recommended the building of Leper's triumphal arch around Brinker's keystone.†  (source)
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    Keystones had always had a tradition of secrecy.†  (source)
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    In his summation, Sonny Seiler puts heavy emphasis on the clumsiness of the police at Mercer House, comparing them to the Keystone Kops.†  (source)
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    Keystones as a masonry technique for building stone archways had been one of the best-kept secrets of the early Masonic brotherhood.†  (source)
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    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.†  (source)
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    Keystones.†  (source)
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    The keystone of the state's case was the six-page Plan of Action confiscated in the Rivonia raid.†  (source)
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    There were plastic bags filled with Keystone beer cans all over the house and the tiny front yard.†  (source)
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keystone as in:  keystone of the arch

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After the keystone is placed, the scaffolding supporting the arch can be removed.
keystone = wedge-shaped stone at the center of an arch that locks the arch in place