merchandise vs buy

merchandise and buy both are nouns.

Word	Noun	Adjective	Verb	Adverb
merchandise	Yes	No	Yes	No
buy	Yes	No	Yes	No

merchandise (noun)	buy (noun)
items for sale to the individual consumer	an advantageous purchase
branded products meant to promote another product, especially films and pop groups

merchandise (verb)	buy (verb)
engage in the trade of	accept as true
	obtain by purchase; acquire by means of a financial transaction
	make illegal payments to in exchange for favors or influence
	acquire by trade or sacrifice or exchange
	be worth or be capable of buying