devotion vs fetish

devotion and fetish both are nouns.

Word	Noun	Adjective	Verb	Adverb
devotion	Yes	No	No	No
fetish	Yes	No	No	No

As nouns, fetish is a hyponym of devotion; that is, fetish is a word with a more specific, narrower meaning than devotion:

Other hyponyms of devotion include cultism, hobbyism, fetich, party spirit.

devotion (noun)	fetish (noun)
(usually plural) religious observance or prayers (usually spoken silently)	excessive or irrational devotion to some activity
commitment to some purpose	a charm superstitiously believed to embody magical powers
religious zeal; the willingness to serve God	a form of sexual desire in which gratification depends to an abnormal degree on some object or item of clothing or part of the body
feelings of ardent love