quoin

1 of 2

noun

1
a
: 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

Illustration of quoin

Illustration of quoin
  • quoin 1b

quoin

2 of 2

verb

quoined; quoining; quoins

transitive verb

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

Examples of quoin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
In amongst the candy-counter color palette, clawfoot tubs, and sugar-cube corner quoins, the sweetest dreams of all are to be had in the Blue Room, a long, narrow chamber which is now a fairytale come true. Chloe Frost-Smith, Vogue, 24 Sep. 2025 The sprawling home, designed by Paul Marchese, a former chief architect of the original World Trade Center, features classical elements such as decorative quoins, a portico entry, and roof balusters. Demetrius Simms, Robb Report, 11 Apr. 2024 The living room features an electric fireplace and quoin corners. John R. Ellement, BostonGlobe.com, 4 Jan. 2023 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

Word History

Etymology

Noun

alteration of coin entry 1

First Known Use

Noun

1532, in the meaning defined at sense 1a

Verb

1683, in the meaning defined at sense 1

Time Traveler
The first known use of quoin was in 1532

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Cite this Entry

“Quoin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quoin. Accessed 1 Jul. 2026.

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