A generally accepted principle; a rule. / a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art.

A clergy member serving a cathedral or collegiate church. / A canon regular, a member of any of several Roman Catholic religious orders.

Alternative spelling of qanun

(obsolete, now a misspelling) Alternative spelling of cannon (“weapon”) / Alternative spelling of cannon (“a carom in billiards”)

(Christianity) The final process or decree (following beatification) by which the name of a deceased person is placed in the catalogue (canon) of saints and commended to perpetual veneration and invocation.

canonical

Present in a canon, religious or otherwise. / According to recognised or orthodox rules. / Stated or used in the most basic and straightforwardly applicable manner. / Prototypical.

(plural only) The formal robes of a priest. / (Internet) A URL presented in canonical form.

plural of canon

(chiefly Roman Catholicism) To declare (a deceased person) as a saint, and enter them into the canon of saints. / (figuratively) To regard as a saint; to glorify, to exalt to the highest honour.