from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Variant of quoin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A projecting corner or angle.
- n. A wedge used in typesetting
from the GNU version of the Collaborative International Dictionary of English
- n. A var. spelling of coin, quoin, a corner, wedge; -- chiefly used in the phrase coign of vantage, a position advantageous for action or observation.
- n. an expandable metal or wooden wedge used by printers to lock up a form within a chase.
- n. the keystone of an arch.
from The Century Dictionary and Cyclopedia
- n. A corner; a coin or quoin; a projecting point. See quoin.
- n. In geology, an original angular elevation of land around which as a corner-stone continental growth has taken place.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the keystone of an arch
- n. expandable metal or wooden wedge used by printers to lock up a form within a chase
From Old French coigne ("wedge, cornerstone, die for stamping"), from Latin cuneus ("wedge"). See also quoin ("cornerstone") (Wiktionary)