
1) Angle 2) Coign 3) Coigne
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https://www.crosswordclues.com/clue/quoin

1) Coign 2) Coigne 3) Cornerstone 4) The keystone of an arch 5) Type of wall 6) Wedge 7) Wedge of stone
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https://www.crosswordclues.com/clue/quoin
[architecture] Quoins (n or n) are masonry blocks at the corner of a wall. They exist in some cases to provide actual strength for a wall made with inferior stone or rubble and in other cases to make a feature of a corner, creating an impression of permanence and strength, and reinforcing the onlooker’s sense of a structure’s presence. ...
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http://en.wikipedia.org/wiki/Quoin_(architecture)

one of a series of stones laid at the exterior corners and angles of a building and consisting of contrasting material to that of the wall.
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http://faculty.bsc.edu/jtatter/glossary.html

The dressed cornerstone at an angle of a building.
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http://great-castles.com/glossary.php

a wedge; salient angle of a building; cornerstone
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http://phrontistery.info/q.html

• (n.) To prevent casks from rolling. • (n.) to support and steady a stone. • (n.) To support the breech of a cannon. • (n.) A wedgelike piece of stone, wood metal, or other material, used for various purposes • (n.) To wedge or lock up a form within a chase. • (n.) Originally, a solid exterior angle, as of a building;...
Found on
http://thinkexist.com/dictionary/meaning/quoin/

in Western architecture, both the external angle or corner of a building and, more often, one of the stones used to form that angle. These ...
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http://www.britannica.com/eb/a-z/q/8

Dressed stone at angle of building.
Found on
http://www.castlesontheweb.com/glossary.html

Dressed stone at angle of building.
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http://www.encyclo.co.uk/local/20018

Quoins or Cornerstones are the corner stones positioned at the edge of a building wall.
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http://www.encyclo.co.uk/local/20708

The stones at the corner of a building, often distinctive of a building style. Escomb style is alternating long and short sides of stones - this can be seen on Anglo-Saxon churches at Escomb (County Durham) and partly surviving at Whittingham (Northumberland).
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http://www.encyclo.co.uk/local/20766

1. Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked. ... In stone, the quoins consist of blocks larger than those used in the rest of the building, and cut to dimension. In brickwork, quoins consist of groups or masses of brick laid together, and in a certain i...
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http://www.encyclo.co.uk/local/20973

dressed stone at corner of building
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http://www.encyclo.co.uk/local/22129

A projecting right angle masonry corner.
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http://www.encyclo.co.uk/local/22187

A structural form, usually of masonry, used at the corners of a building for the purpose of reinforcement, frequently imitated for decorative purposes.
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http://www.encyclo.co.uk/local/22196
Quoin (kwoin or koin; 277)
noun [ See
Coin , and confer
Coigne .]
1. (Architecture) Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked. » In stone, the quoins consist of blocks large...
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http://www.encyclo.co.uk/webster/Q/14

Large squared stone or brick set at the corner formed by two masonry walls. Projects out from the corner in some cases
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http://www.masoncontractors.org/aboutmasonry/masonryglossary/

In architecture a quoin was originally, a solid exterior angle, as of a building. Now the term is commonly applied to one of the selected pieces of material by which the corner is marked. In stone, the quoins consist of blocks larger than those used in the rest of the building, and cut to dimension. In brickwork, quoins consist of groups or masses ...
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http://www.probertencyclopaedia.com/browse/TQ.HTM

In architecture, large, sometimes rusticated, and usually slightly projecting stone blocks that form the corners of the exterior walls of masonry buildings to provide structural strength. R
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http://www.virtualani.org/glossary/index.htm

[
n] - expandable metal or wooden wedge used by printers to lock up a form within a chase 2. [n] - the keystone of an arch
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http://www.webdictionary.co.uk/definition.php?query=quoin

dressed stone at corner of building
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https://www.encyclo.co.uk/local/20402

The corner of a building; also used of the individual stones (dressed) making up the corner.
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https://www.encyclo.co.uk/local/20434

The external vertical corner of a wall at a doorway, window or corner of a building, which must be built accurately vertical.
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https://www.encyclo.co.uk/local/20694
noun (architecture) solid exterior angle of a building; especially one formed by a cornerstone
Found on
https://www.encyclo.co.uk/local/20974
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