mitre¹ or (N American) miter /mīˈtər/

1. A high, pointed headdress, cleft crosswise on top and with two ribbons hanging from the back, worn by archbishops and bishops, and by some abbots in the Western Church
2. Episcopal office or status (figurative)
3. Esp in ancient Greece, a woman's headband
4. A belt or girdle (Pope, following Homer)
5. An oriental hat or turban (obsolete)
6. A gastropod of the genus Mitra or its conical shell (mitre shell)

To adorn with a mitre

mīˈtral adjective

1. Of or like a mitre
2. Of the mitral valve

mitˈriform /mītˈ or mitˈ/ adjective

Mitre-shaped

mitral valve noun

A mitre-shaped valve of the heart

miˈtre-wort noun

Bishop's cap

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

mitre wheel noun

A bevel-wheel having its face inclined 45º to its axis

• plateauing
• plateaus
• plateaux
• plate-basket
• plate-baskets
• plated
• plate-fleet
• plate-fleets
• plateful
• platefuls
• plate glass
• plate-glass
• plate glasses
• platelayer
• platelayers
• plate-leather
• plate-leathers
• platelet
• platelets
• plate-like
• platemaker
• platemakers
• plateman
• platemark
• platemarks