devotion vs worship

devotion and worship both are nouns.

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

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

devotion (noun)	worship (noun)
(usually plural) religious observance or prayers (usually spoken silently)	the activity of worshipping
commitment to some purpose	a feeling of profound love and admiration
religious zeal; the willingness to serve God
feelings of ardent love

devotion (verb)	worship (verb)
	love unquestioningly and uncritically or to excess; venerate as an idol
	show devotion to (a deity)
	attend religious services