[ koin, kwoin ]
/ kɔɪn, kwɔɪn /


verb (used with object)

to provide with quoins, as a corner of a wall.
to secure or raise with a quoin or wedge.


Also coign, coigne.

Origin of quoin

First recorded in 1525–35; variant of coin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for quoin

British Dictionary definitions for quoin


coign or coigne

/ (kwɔɪn, kɔɪn) /


an external corner of a wall
Also called: cornerstone a stone forming the external corner of a wall
another name for keystone (def. 1)
printing a metal or wooden wedge or an expanding mechanical device used to lock type up in a chase
a wedge used for any of various other purposes, such as (formerly) to adjust elevation in muzzle-loading cannon

Word Origin for quoin

C16: variant of coin (corner)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012