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.

ChatGPTRate this definition:0.0 / 0 votes

1. keystone

   A keystone is the central principle or part of a policy, system, etc., on which all else depends. It is also an architectural term referring to the wedge-shaped stone piece at the apex of a masonry arch, or the generally round one at the apex of a vault, locking all stones into position, allowing the arch or vault to bear weight.

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

Usage in printed sourcesFrom: 

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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. TransCanada:

   The fundamental question remains: Do Americans want to continue to import millions of barrels of oil every day from the Middle East and Venezuela or do they want to get their oil from North Dakota and Canada through Keystone XL? We believe the answer is clear and the choice is Keystone XL.

2. Troy Stevenson:

   Thank you Gov. Wolf for your leadership and for taking bold action to protect and affirm LGBTQ young people across the Commonwealth, we urge the state legislature to pass comprehensive state-wide protections and for governors across the nation to follow the Keystone State's lead in ending this abusive practice.

3. George Bernard Shaw:

   The notion that the colonel need be a better man than the private is as confused as the notion that the keystone need be stronger than the coping stone.

4. White House:

   The president’s veto of the Keystone jobs bill is a national embarrassment, the president is just too close to environmental extremists to stand up for America’s workers. He’s too invested in left-fringe politics to do what presidents are called on to do, and that’s put the national interest first.

5. Pierre Trudeau:

   In the end, it's not really about Keystone. It's about judgment, it's about the narrowness that allowed one project in one industry - however large and important the project and industry - to define one of the most positive and prosperous bilateral relationships the world has ever known.

Popularity rank by frequency of use

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. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/keystone
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=keystone
7. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=keystone