mitre² or (N American) miter /mīˈtər/

1. A joint (also miˈtre-joint) in which each piece is cut at an angle of 45º to its side, giving a right angle between the pieces
2. Sometimes applied to any joint where the plane of junction bisects the angle
3. An angle of 45º
4. A gusset, a tapered insertion (needlework)

1. To join with a mitre
2. To turn a corner in, by cutting out a triangular piece and joining (needlework)

To meet in a mitre

mitre box noun

A box with narrow slots to guide a saw when cutting a mitre

mitre fold noun

(in origami) a fold in which two corners are turned down at equal angles to meet each other in the centre

• overturning
• overturns
• overtype
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• overused
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• overuse syndrome
• overusing
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• overvaluations
• overvalue
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• overview
• overviews
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• overwash
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• overwatched