Coign

Coign is an older spelling of Quoin, and may refer to:

• Coign (architecture), masonry blocks at the corner of a wall
• Coign (gunnery), a wedge used in aiming a cannon
• Coign (printing), wooden or metal wedges used for locking printing type into a chase
• A coign, in Crystallography, is the point at which three facets of a crystal meet
• A coign, in Geology, is an angular plate around which a continent has formed

See also

• Coign of vantage, an elevated observation point
• Coign and livery, military exactions in Gaelic Ireland

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