pedlar vs vender

pedlar and vender both are nouns.

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

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

pedlar: 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 pedlar include marketer, seller, trafficker, vendor.

pedlar (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