attend vs worship

attend is not a noun while worship is a noun.

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

As verbs, worship is a hyponym of attend; that is, worship is a word with a more specific, narrower meaning than attend:

Other hyponyms of attend include sit in.

attend (noun)	worship (noun)
	the activity of worshipping
	a feeling of profound love and admiration

attend (verb)	worship (verb)
give heed (to)	love unquestioningly and uncritically or to excess; venerate as an idol
work for, or be a servant to	show devotion to (a deity)
take charge of or deal with	attend religious services
be present at (meetings, church services, university), etc.
to accompany as a circumstance or follow as a result