secular humanism vs ism

secular humanism and ism both are nouns.

Word	Noun	Adjective	Verb	Adverb
secular humanism	Yes	No	No	No
ism	Yes	No	No	No

As nouns, ism is a hypernym of secular humanism; that is, ism is a word with a broader meaning than secular humanism:

secular humanism: the doctrine emphasizing a person's capacity for self-realization through reason; rejects religion and the supernatural
ism: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of secular humanism include doctrine, philosophical system, philosophy, school of thought.

secular humanism (noun)	ism (noun)
the doctrine emphasizing a person's capacity for self-realization through reason; rejects religion and the supernatural	a belief (or system of beliefs) accepted as authoritative by some group or school