loading vs merchandise

loading and merchandise both are nouns.

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

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

Other hypernyms of loading include product, ware.

loading (noun)	merchandise (noun)
the labor of putting a load of something on or in a vehicle or ship or container etc.	items for sale to the individual consumer
goods carried by a large vehicle	branded products meant to promote another product, especially films and pop groups
weight to be borne or conveyed
a quantity that can be processed or transported at one time
the ratio of the gross weight of an airplane to some factor determining its lift

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