( BrE ) ( US miter ) / ˈmaɪtə(r); NAmE / noun , verb
■ noun
1.
a tall pointed hat worn by bishops at special ceremonies as a symbol of their position and authority
2.
(also ˈmitre joint ) a corner joint, formed by two pieces of wood each cut at an angle, as in a picture frame
■ verb
[ vn ] ( technical ) to join two pieces of wood together with a mitre joint
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WORD ORIGIN
late Middle English : from Old French , via Latin from Greek mitra belt or turban.