merchandising vs merchandise

merchandising and merchandise both are nouns.

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

As nouns, merchandising and merchandise are synonyms defined as:

merchandising and merchandise: branded products meant to promote another product, especially films and pop groups

As nouns, merchandise is a hypernym of merchandising; that is, merchandise is a word with a broader meaning than merchandising:

merchandising: branded products meant to promote another product, especially films and pop groups
merchandise: items for sale to the individual consumer

Other hypernyms of merchandising include product, ware.

merchandising (noun)	merchandise (noun)
the exchange of goods for an agreed sum of money	items for sale to the individual consumer
the business of drawing public attention to goods and services	branded products meant to promote another product, especially films and pop groups
branded products meant to promote another product, especially films and pop groups

merchandising (verb)	merchandise (verb)
	engage in the trade of