canon

noun

1. a rule or especially body of rules or principles generally established as valid and fundamental in a field or art or philosophy

   noun.communication

   Examples

   The neoclassical canon.

   Canons of polite society.

   Source: WordNet 3.0

2. a priest who is a member of a cathedral chapter

   noun.person

   Source: WordNet 3.0

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

   noun.object

   Synonyms canyon

   Source: WordNet 3.0

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

   noun.communication

   Source: WordNet 3.0

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

   noun.communication

   Source: WordNet 3.0

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

   noun.communication

   Source: WordNet 3.0

7. A law or rule.

   noun

   Source: webster1913