attend to vs assist

attend to is not a noun while assist is a noun.

Word	Noun	Adjective	Verb	Adverb
attend to	No	No	Yes	No
assist	Yes	No	Yes	No

As verbs, attend to and assist are synonyms defined as:

Other synonyms of attend to include attend, serve, wait on.

As verbs, assist is a hypernym of attend to; that is, assist is a word with a broader meaning than attend to:

Other hypernyms of attend to include aid, help.

attend to (noun)	assist (noun)
	(sports) the act of enabling another player to make a good play
	the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose

attend to (verb)	assist (verb)
get down to; pay attention to; take seriously	act as an assistant in a subordinate or supportive function
work for, or be a servant to	work for, or be a servant to
	give help or assistance; be of service