crier vs pedlar

crier and pedlar both are nouns.

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

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

crier: a peddler who shouts to advertise the goods he sells
pedlar: someone who travels about selling his wares (as on the streets or at carnivals)

Other hypernyms of crier include hawker, packman, peddler, pitchman, bawler, bellower, roarer, screamer, screecher, shouter, yeller.

crier (noun)	pedlar (noun)
(formerly) an official who made public announcements	someone who travels about selling his wares (as on the streets or at carnivals)
a person who weeps
a peddler who shouts to advertise the goods he sells