Synonyms of axiom

1 Syllable
law, saying, saw, truisms, truth, truism
2 Syllables
belief, proverb, moral, brocard, maxim, precept, maxims, byword, pro-verb, theorem, theorems, dictum, dictums
3 Syllables
apophthegm, daffodils, decretion, apothegm, factualism, adage, principium, aphorisms, device, daffodil, aphorism, doctrine, principle
4 Syllables
metaphysics, postulate, proposition, philosophy, rationalism, fundamental, ontologies, ontology, hypotheses, hypothesis, philosophies