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Look up quoin in Wiktionary, the free dictionary.
Quoins are masonry blocks at the corner of a wall.
Quoin or Du Quoin may also refer to:
Places
edit- Quoin Bluff, Western Australia
- Quoin Hill Airfield, Vanuatu
- Du Quoin, Illinois, USA
Other
edit- Quoin (gunnery), a wedge used in aiming a cannon
- Quoin (printing), wooden or metal wedges or cam operated devices for locking printing type into a chase