cornerstone

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cornerstone

  • /ˈkɔː.nə.stəʊn/ UK
  • /ˈkɔɹ.nɚ.stoʊn/ US

Where it comes from

From Middle English corner ston; equivalent to corner + stone. The figurative sense is in part after Psalm 118:22, and is also quoted several times in the New Testament.

noun cornerstones · corner stone

  1. A stone forming the base at the corner of a building. Clutch it like a cornerstone Otherwise it all comes down Justify denials and Grip 'em to the lonesome end
  2. Such a stone used ceremonially, often inscribed with the architect's and owner's names, dates and other details. The cornerstone on the Flatiron Building is set on the Fifth Avenue facade.
  3. figuratively That which is prominent, fundamental, noteworthy, or central. Exceptional service is the cornerstone of the hospitality industry.

Thesaurus

Closest in meaning: base, groundwork, basis, foundation, fundament, keystone, quoin, vault, arch, basement, pillar, underpinning, landmark, plank, canopy, bridgehead

Translations

Every language

noun base stone

Españolpiedra angular
日本語礎 ishizue
Françaispierre angulaire, pierre d'angle
DeutschEckstein
Italianopietra angolare, pietra d'angolo
Ελληνικάακρογωνιαίος λίθος akrogoniaíos líthos
Русскийкраеуго́льный ка́мень krajeugólʹnyj kámenʹ

noun ceremonial stone

Españolpiedra angular, primera piedra
日本語礎石 soseki
中文奠基石, 基石 jīshí
Portuguêsprimeira pedra, pedra angular
Françaispierre angulaire, première pierre
DeutschGrundstein
Italianopietra angolare
Românăpiatră de temelie
Русскийкраеуго́льный ка́мень krajeugólʹnyj kámenʹ
Tiếng Việtviên đá đầu tiên
العربيةحجر أساس
עבריתאבן פינה

noun that which is prominent, fundamental, noteworthy, or central

Españolfundamento
中文基礎 /基础 jīchǔ
Portuguêsfundamento, princípio, base
Françaispierre angulaire, pierre d'angle
DeutschEckpfeiler, Eckstein
Italianofondamenta
Ελληνικάακρογωνιαίος λίθος akrogoniaíos líthos
Русскийкраеуго́льный ка́мень krajeugólʹnyj kámenʹ

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MLA

"cornerstone." Wiktionary, via Micwyn, micwyn.com/word/cornerstone. Accessed 5 Nov. 2026.

APA

cornerstone. (n.d.). In Wiktionary, via Micwyn. Retrieved November 5, 2026, from https://micwyn.com/word/cornerstone

Chicago

"cornerstone." Wiktionary, via Micwyn. Accessed November 5, 2026. https://micwyn.com/word/cornerstone.

BibTeX
@misc{cornerstone_2026,
  title = {cornerstone},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/cornerstone},
  urldate = {2026-11-05}
}