Definition:
Compare quoin with other words:
quoil vs. quoin
quoin vs. quoit
quin vs. quoin
quoif vs. quoin
coigne vs. quoin
cask vs. quoin
chase vs. quoin
quoin vs. type
quoin vs. wedge
keystone vs. quoin
arch vs. quoin
block vs. quoin
ornate vs. quoin
corner vs. quoin
cornerstone vs. quoin
cone vs. quoin