hobbyism vs devotion

hobbyism and devotion both are nouns.

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

As nouns, devotion is a hypernym of hobbyism; that is, devotion is a word with a broader meaning than hobbyism:

hobbyism (noun)	devotion (noun)
a devotion to hobbies	(usually plural) religious observance or prayers (usually spoken silently)
	commitment to some purpose
	religious zeal; the willingness to serve God
	feelings of ardent love