\ ˈkȯin How to pronounce quoin (audio) , ˈkwȯin How to pronounce quoin (audio) \

Definition of quoin

 (Entry 1 of 2)

1a : a solid exterior angle (as of a building)
b : one of the members (such as a block) forming a quoin and usually differentiated from the adjoining walls by material, texture, color, size, or projection
2 : the keystone or a voussoir of an arch
3 : a wooden or expandable metal block used by printers to lock up a form within a chase


quoined; quoining; quoins

Definition of quoin (Entry 2 of 2)

transitive verb

1 : to equip (a type form) with quoins
2 : to provide with quoins quoined walls

Illustration of quoin

Illustration of quoin


quoin 1b

In the meaning defined above

Examples of quoin in a Sentence

Recent Examples on the Web: Noun Lancet windows punctuate the stone exterior, which is embellished with quoin corners, while bringing light into the white-walled rooms. Lauren Beale, Forbes, 11 Mar. 2021 Hempel came up with a quoin — an expandable metal gadget that could hold the type into a form with greater ease — and patented it, which seems to have given him the wherewithal to head south. Joy Wallace Dickinson, orlandosentinel.com, 15 Nov. 2020 Classic Jacobethan Revival features outside include a two-story turret with a conical roof, five fluted chimneys and contrasting stone quoins accenting corners. Janet Eastman, OregonLive.com, 18 May 2018 The locks were shut down on Jan. 15 and underwent several repairs while closed, including the replacement of gate anchors, miter blocks, quoin blocks and cylinder seals. Omar Abdel-baqui, Detroit Free Press, 23 Mar. 2018 Marble from a house that was razed to make way for the Kemper Museum of Contemporary Art was repurposed as quoin (corner) work, arches and corbels. Cynthia Billhartz Gregorian, kansascity.com, 28 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quoin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of quoin


1532, in the meaning defined at sense 1a


1683, in the meaning defined at sense 1

History and Etymology for quoin


alteration of coin entry 1

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quoin post

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Cite this Entry

“Quoin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quoin. Accessed 10 Aug. 2022.

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More from Merriam-Webster on quoin

Britannica.com: Encyclopedia article about quoin


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