miter

(noun) joint that forms a corner; usually both sides are bevelled at a 45-degree angle to form a 90-degree corner. Synonyms: miter joint, mitre joint, mitre.

(noun) the surface of a beveled end of a piece where a miter joint is made. Synonyms: mitre. Example: "He covered the miter with glue before making the joint."

(noun) a liturgical headdress worn by bishops on formal occasions. Synonyms: mitre.

(verb) bevel the edges of, to make a miter joint.

(verb) confer a miter on (a bishop).

(verb) fit together in a miter joint.