What is another word for "rule"?

Roget's Thesaurus (1911) lists these synonyms for "rule": act, adage, admitted, adventure, aim, aphorism, aphoristic, apophthegm, apothegm, assumption, attempt, axiom, axiomatic, belief, best, bold, byword, canon, chance, charge, code, command, common, commonness, commonplace, conclusion, conformity, corpus, coup, customary, debut, dictum, direction, empirical, endeavor, essay, exertion, experiment, experimental, experimentally.