The basic, essential, or most important part; foundation
The central supporting element of a whole.
The area enclosed or bounded by an angle formed in this manner:
Find another word for quoin. In this page you can discover 16 synonyms, antonyms, idiomatic expressions, and related words for quoin, like: angle, cornerstone, keystone, wedge, corner, coign, coigne, ashlar, voussoir, jamb and chamfer.