canon

a rule or especially body of rules or principles generally established as valid and fundamental in a field or art or philosophy; "the neoclassical canon"; "canons of polite society"

a priest who is a member of a cathedral chapter

a ravine formed by a river in an area with little rainfall

a contrapuntal piece of music in which a melody in one part is imitated exactly in other parts

a complete list of saints that have been recognized by the Roman Catholic Church

a collection of books accepted as holy scripture especially the books of the Bible recognized by any Christian church as genuine and inspired