The philosophical study of being and knowing.

Roget 450: intellect, mind, understanding, reason, thinking principle; rationality; cogitative faculties, cognitive faculties, discursive faculties, reasoning faculties, intellectual faculties; faculties, senses, consciousness, observation, percipience, intelligence, intellection, intuition, association of ideas, instinct, conception, judgment, wits, parts, capacity, intellectuality, genius; brains, cognitive powers, intellectual powers; wit etc. 498; ability etc. (skill) 698; wisdom etc. 498; Vernunft [G.], Verstand [G.].    soul, spirit, ghost, inner man, heart, breast, bosom, penetralia mentis [Lat.], divina particula aurae [Lat.], heart's core; the Absolute, psyche, subliminal consciousness, supreme principle.    brain, organ of thought, seat of thought; sensorium^†, sensory; head, headpiece; pate, noddle^†, noggin, skull, scull, pericranium [Med.], cerebrum, cranium, brainpan^†, sconce, upper story.    [in computers] [Comp.] central processing unit, CPU; arithmetic and logical unit, ALU.    [Science of mind] metaphysics; psychics, psychology; ideology; mental philosophy, moral philosophy; philosophy of the mind; pneumatology^†, phrenology; craniology [Med.], cranioscopy [Med.].    ideality, idealism; transcendentalism, spiritualism; immateriality etc. 317; universal concept, universal conception.    metaphysician, psychologist etc. ... show more

Dutch: metafysica
Polish: metafizyka, ontologia