packer vs wholesaler

packer and wholesaler both are nouns.

Word	Noun	Adjective	Verb	Adverb
packer	Yes	No	No	No
wholesaler	Yes	No	No	No

As nouns, wholesaler is a hypernym of packer; that is, wholesaler is a word with a broader meaning than packer:

packer: a wholesaler in the meat-packing business
wholesaler: someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers

Other hypernyms of packer include jobber, middleman.

packer (noun)	wholesaler (noun)
a workman employed to pack things into containers	someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers
a wholesaler in the meat-packing business
a hiker who wears a backpack