RhymeZone: metaphysic definitions

Definitions of metaphysic:

adjective: (philosophy, archaic) Metaphysical.
noun: (philosophy, uncountable, archaic) The field of study of metaphysics.
noun: (philosophy, countable) The metaphysical system of a particular philosopher or of a particular school of thought.
noun: (philosophy, countable) A fundamental principle or key concept.

(Definitions from Wiktionary)