advert vs attend

advert is a noun but attend is not a noun.

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

As verbs, advert and attend are synonyms defined as:

Other synonyms of advert include give ear, hang, pay heed.

advert (noun)	attend (noun)
a public promotion of some product or service

advert (verb)	attend (verb)
make a more or less disguised reference to	give heed (to)
make reference to	work for, or be a servant to
give heed (to)	take charge of or deal with
	be present at (meetings, church services, university), etc.
	to accompany as a circumstance or follow as a result