propose vs advocate

propose is not a noun while advocate is a noun.

Word	Noun	Adjective	Verb	Adverb
propose	No	No	Yes	No
advocate	Yes	No	Yes	No

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

propose (noun)	advocate (noun)
	a person who pleads for a cause or propounds an idea
	a lawyer who pleads cases in court

propose (verb)	advocate (verb)
present for consideration, examination, criticism, etc.	push for something
propose or intend	speak, plead, or argue in favor of
make a proposal, declare a plan for something
ask (someone) to marry you
put forward; nominate for appointment to an office or for an honor or position