Definitions for keystone
ˈkiˌstoʊnkey·stone

Princeton's WordNetRate this definition:3.7 / 3 votes

1. anchor, mainstay, keystone, backbone, linchpin, lynchpinnoun

   a central cohesive source of support and stability

   "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm"

2. keystone, key, headstonenoun

   the central building block at the top of an arch or vault

WiktionaryRate this definition:0.0 / 0 votes

1. keystonenoun

   The top stone of an arch.

2. keystonenoun

   A native or resident of the American state of Pennsylvania.

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Keystonenoun

   The middle stone of an arch.

   Etymology: key and stone.

   If you will add a keystone and chaptrels to the arch, let the breadth of the upper part of the keystone be the height of the arch. Joseph Moxon, Mech. Exer.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Keystonenoun

   the central or topmost stone of an arch. This in some styles is made different in size from the other voussoirs, or projects, or is decorated with carving. See Illust. of Arch

WikidataRate this definition:5.0 / 1 vote

1. Keystone

   A keystone is the wedge-shaped stone piece at the apex of a masonry vault or arch, which is the final piece placed during construction and locks all the stones into position, allowing the arch to bear weight. Although a masonry arch or vault cannot be self-supporting until the keystone is placed, the keystone experiences the least stress of any of the voussoirs, due to its position at the apex. Old keystones can decay due to vibration, a condition known as bald arch. In a rib-vaulted ceiling, keystones may mark the intersections of two or more arched ribs. For aesthetic purposes, the keystone is sometimes larger than the other voussoirs, or embellished with a boss. Mannerist architects of the 16th century often designed arches with enlarged and slightly dropped keystones, as in the "church house" entrance portal at Colditz Castle. Numerous examples are found in the work of Sebastiano Serlio, a 16th-century Italian Mannerist architect.

Matched Categories

1. • Building Block
   • Support

Anagrams for keystone »

1. keynotes

How to pronounce keystone?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say keystone in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of keystone in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of keystone in Pythagorean Numerology is: 6

Examples of keystone in a Sentence

1. Fox News:

   The race isn’t over in the states we’ve shifted to leaning Democratic, but it’s now clear that Clinton is playing from a position of strength in those states, most worrisome for Trump are the current polling trends in Pennsylvania. No Republican has won Pennsylvania since 1988. But it’s pretty hard to see a path to victory for Trump that doesn’t include a win in the Keystone State.

2. Bill Hagerty:

   The whole world is looking at how Putin is able to negotiate this, and what he’s able to get away with, we have authoritarians around the world, and they take this, and they see it as an opportunity because, again, lack of resolve. What we need to do right now? We need to demonstrate resolve and the best thing we could do right now is re-open the Keystone XL Pipeline, start drilling again in America, make ourselves energy independent [and] lower the price of global energy — that would take a lot of the air out of the sails of Vladimir Putin.

3. Jason Modglin:

   Keystone would have absolutely made a difference because it would have lowered the cost of Canadian crude to get to the markets that it needs to get to in order to be refined and shipped to be utilized here in the United States, and so by canceling Keystone, it artificially raises the price of Canadian oil and allows for the Russians to undercut that.

4. Commander Peter Spindler:

   For that I want to apologize, at times we have been portrayed as if we've acted like Keystone Cops.

5. Mike Pompeo:

   We shut down 10,000 jobs with the Keystone Pipeline here in the United States of America and then they permitted the Russian pipeline to continue to be built that will threaten the heart of Europe's energy infrastructure and of course you were referring to the cyber attack on the Colonial Pipeline, president Trump and our team were very clear about what we would do in response to cyber attacks. We changed. It's a pretty arcane idea, but we changed the NSPM, the rules that permitted us to respond to these attacks. I hope that the Biden administration will use the tools that we provided.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=keystone
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Keystone
3. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=keystone
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/keystone
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=keystone