packman vs vender

packman and vender both are nouns.

Word	Noun	Adjective	Verb	Adverb
packman	Yes	No	No	No
vender	Yes	No	No	No

As nouns, vender is a hypernym of packman; that is, vender is a word with a broader meaning than packman:

packman: someone who travels about selling his wares (as on the streets or at carnivals)
vender: someone who promotes or exchanges goods or services for money

Other hypernyms of packman include marketer, seller, trafficker, vendor.

packman (noun)	vender (noun)
someone who travels about selling his wares (as on the streets or at carnivals)	someone who promotes or exchanges goods or services for money