monism vs philosophy

monism and philosophy both are nouns.

Word	Noun	Adjective	Verb	Adverb
monism	Yes	No	No	No
philosophy	Yes	No	No	No

As nouns, philosophy is a hypernym of monism; that is, philosophy is a word with a broader meaning than monism:

monism: the doctrine that reality consists of a single basic substance or element
philosophy: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of monism include doctrine, ism, philosophical system, school of thought.

monism (noun)	philosophy (noun)
the doctrine that reality consists of a single basic substance or element	the rational investigation of questions about existence and knowledge and ethics
	a belief (or system of beliefs) accepted as authoritative by some group or school
	any personal belief about how to live or how to deal with a situation