encourage vs promote

encourage and promote both are verbs.

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

As verbs, encourage and promote are synonyms defined as:

Other synonyms of encourage include advance, boost, further.

encourage (verb)	promote (verb)
spur on	make publicity for; try to sell (a product)
inspire with confidence; give hope or courage to	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
contribute to the progress or growth of	be changed for a superior chess or checker piece
	give a promotion to or assign to a higher position
	contribute to the progress or growth of