quoin /koin/

1. A salient angle, esp of a building
2. A cornerstone, esp a dressed cornerstone
3. A keystone
4. A voussoir (qv)
5. A wedge, esp for locking type in a chase, or for raising a gun

1. To wedge
2. To secure or raise by wedging

quoinˈing noun

• hydrogenise
• hydrogenised
• hydrogenises
• hydrogenising
• hydrogenize
• hydrogenized
• hydrogenizes
• hydrogenizing
• hydrogenous
• hydrogen peroxide
• hydrogens
• hydrogen sulphide
• hydrogeologies
• hydrogeologist
• hydrogeologists
• hydrogeology
• luffing
• luffing crane
• luffing cranes
• luffing-jib crane
• luffs
• Luftwaffe
• lug
• lug-chair
• lug-chairs