secular vs secularism

secular and secularism both are nouns.

Word	Noun	Adjective	Verb	Adverb
secular	Yes	Yes	No	No
secularism	Yes	No	No	No

secular (noun)	secularism (noun)
someone who is not a clergyman or a professional person	a doctrine that rejects religion and religious considerations

secular (adjective)	secularism (adjective)
of or relating to clergy not bound by monastic vows
not concerned with or devoted to religion
characteristic of or devoted to the temporal world as opposed to the spiritual world
of or relating to the doctrine that rejects religion and religious considerations
characteristic of those who are not members of the clergy