advertise vs plug

advertise is not a noun while plug is a noun.

Word	Noun	Adjective	Verb	Adverb
advertise	No	No	Yes	No
plug	Yes	No	Yes	No

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

Other hyponyms of advertise include propagandise, propagandize, bill, agitate, campaign, crusade, fight, press, push.

advertise (noun)	plug (noun)
	an old or over-worked horse
	blockage consisting of an object designed to fill a hole tightly
	an upright hydrant for drawing water to use in fighting a fire
	electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
	an electrical device with two or three pins that is inserted in a socket to make an electrical connection
	blatant or sensational promotion
	a wad of something chewable as tobacco

advertise (verb)	plug (verb)
make publicity for; try to sell (a product)	persist in working hard
call attention to	insert as a plug
	insert a plug into
	replace the center of a coin with a baser metal
	make a plug for; praise the qualities or in order to sell or promote
	deliver a quick blow to
	fill or close tightly with or as if with a plug