tenet (n.)

• axiom
• belief
• canon
• code
• commandment
• convention
• conviction
• credo
• creed
• dictum
• doctrine
• dogma
• form
• formula
• guideline
• idea
• ideology
• imperative
• law
• maxim
• mitzvah
• moral
• norm
• opinion
• ordinance
• persuasion
• position
• precept
• principle
• regulation
• rubric
• rule
• standard
• teaching
• view
• viewpoint