advert vs think of

advert is a noun but think of is not a noun.

Word	Noun	Adjective	Verb	Adverb
advert	Yes	No	Yes	No
think of	No	No	Yes	No

As verbs, think of is a hypernym of advert; that is, think of is a word with a broader meaning than advert:

Other hypernyms of advert include have in mind, mean.

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

advert (verb)	think of (verb)
make a more or less disguised reference to	keep in mind for attention or consideration
make reference to	look on as or consider
give heed (to)	intend to refer to
	take into consideration, have in view
	choose in one's mind
	devise or invent