(n.) The theory or science of the method or grounds of knowledge.
Thesaurus Entries
aesthetics, axiology, casuistry, cosmology, ethics, first philosophy, gnosiology, logic, mental philosophy, metaphysics, moral philosophy, ontology, phenomenology, philosophastry, philosophic doctrine, philosophic system, philosophic theory, philosophical inquiry, philosophical speculation, philosophy, school of philosophy, school of thought, science of being, sophistry, theory of beauty, theory of knowledge, value theory
