philosophical system vs ism

philosophical system and ism both are nouns.

Word	Noun	Adjective	Verb	Adverb
philosophical system	Yes	No	No	No
ism	Yes	No	No	No

As nouns, philosophical system and ism are synonyms defined as:

philosophical system and ism: a belief (or system of beliefs) accepted as authoritative by some group or school

Other synonyms of philosophical system include doctrine, philosophy, school of thought.

philosophical system (noun)	ism (noun)
a belief (or system of beliefs) accepted as authoritative by some group or school	a belief (or system of beliefs) accepted as authoritative by some group or school