Synonyms of ontology

1 Syllable
view, truth, thought
2 Syllables
wisdom, values, viewpoint, idea, tenet, logic, beliefs, system, thinking, outlook, reason, axiom, theory
3 Syllables
convictions, aesthetics, reasoning, conception, doctrine
4 Syllables
metaphysics, philosophy, ideology, attitude, rationalism, cosmologies, philosophies, cosmology