faith vs religious sect

faith and religious sect both are nouns.

Word	Noun	Adjective	Verb	Adverb
faith	Yes	No	No	No
religious sect	Yes	No	No	No

As nouns, religious sect is a hyponym of faith; that is, religious sect is a word with a more specific, narrower meaning than faith:

faith (noun)	religious sect (noun)
loyalty or allegiance to a cause or a person	a subdivision of a larger religious group
a strong belief in a supernatural power or powers that control human destiny
complete confidence in a person or plan etc
an institution to express belief in a divine power