\ 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 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, "Storied Cobbs Mansion has an indoor skate ramp and $77,632 tax bill (photos)," 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, "Soo Locks shipping season starts Sunday," 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, "Camelot’s tale: How Weatherby Lake’s castle, now for sale, came to be," 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.

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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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Time Traveler for quoin

Time Traveler

The first known use of quoin was in 1532

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Statistics for quoin

Cite this Entry

“Quoin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quoin. Accessed 6 Jul. 2020.

More from Merriam-Webster on quoin

Rhyming Dictionary: Words that rhyme with quoin

Britannica.com: Encyclopedia article about quoin

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