consignment vs merchandise

consignment and merchandise both are nouns.

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

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

Other hypernyms of consignment include product, ware.

consignment (noun)	merchandise (noun)
the official act of consigning a person to confinement (as in a prison or mental hospital)	items for sale to the individual consumer
the delivery of goods for sale or disposal	branded products meant to promote another product, especially films and pop groups
goods carried by a large vehicle

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