- the official headdress of a bishop in the Western Church, in its modern form a tall cap with a top deeply cleft crosswise, the outline of the front and back resembling that of a pointed arch.
- the office or rank of a bishop; bishopric.
- the official headdress of the ancient high priest, bearing on the front a gold plate engraved with the words Holiness to the Lord. Exodus 28:36–38.
- a fillet worn by women of ancient Greece.
- an oblique surface formed on a piece of wood or the like so as to butt against an oblique surface on another piece to be joined with it.
- the inclined seam connecting the two cloths of an angulated sail.
- to bestow a miter upon, or raise to a rank entitled to it.
- to join with a miter joint.
- to cut to a miter.
- to join (two edges of fabric) at a corner by various methods of folding, cutting, and stitching.
- the usual US spelling of mitre
