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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    Trust is the keystone of any lasting friendship or partnership.
    keystone = essential foundation
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    The scientist’s discovery became the keystone of modern genetics.
    keystone = most important part
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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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Show 10 more with 2 word variations
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    It was the keystone that had held the whole cathedral up.†  (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 were plastic bags filled with Keystone beer cans all over the house and the tiny front yard.†  (source)
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    Keystones had always had a tradition of secrecy.†  (source)
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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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    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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    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.†  (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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    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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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