promote vs help

promote is not a noun while help is a noun.

Word	Noun	Adjective	Verb	Adverb
promote	No	No	Yes	No
help	Yes	No	Yes	No

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

Other hyponyms of promote include connive at, wink at, cultivate, foster, further, spur, carry, feed, conduce, contribute, lead.

promote (noun)	help (noun)
	the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
	a person or thing that is a resource that helps make something easier or possible to do
	a means of serving
	a person who contributes to the fulfillment of a need or furtherance of an effort or purpose

promote (verb)	help (verb)
make publicity for; try to sell (a product)	improve the condition of
change a pawn for a better piece by advancing it to the eighth row, or change a checker piece for a more valuable piece by moving it to the row closest to your opponent	improve; change for the better
be changed for a superior chess or checker piece	help to some food; help with food or drink
give a promotion to or assign to a higher position	take or use
contribute to the progress or growth of	give help or assistance; be of service
	contribute to the furtherance of
	be of use
	abstain from doing; always used with a negative