(n.) Any opinion, principle, belief, or doctrine; as, the tenets of Plato or of Cicero.
Thesaurus Entries
a belief, article of faith, axiom, belief, canon, code, commandment, convention, conviction, credo, creed, dictum, doctrine, dogma, form, formula, general principle, golden rule, guideline, guiding principle, idea, ideology, imperative, law, maxim, mitzvah, moral, norm, opinion, ordinance, persuasion, position, precept, principium, principle, regulation, rubric, rule, settled principle, standard, teaching, view, viewpoint, working principle, working rule
