merchandise vs commerce

merchandise and commerce both are nouns.

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

merchandise (noun)	commerce (noun)
items for sale to the individual consumer	transactions (sales and purchases) having the objective of supplying commodities (goods and services)
branded products meant to promote another product, especially films and pop groups	social exchange, especially of opinions, attitudes, etc.

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