huckster vs seller

huckster and seller both are nouns.

Word	Noun	Adjective	Verb	Adverb
huckster	Yes	No	Yes	No
seller	Yes	No	No	No

As nouns, seller is a hypernym of huckster; that is, seller is a word with a broader meaning than huckster:

Other hypernyms of huckster include marketer, trafficker, vender, vendor.

huckster (noun)	seller (noun)
a seller of shoddy goods	someone who promotes or exchanges goods or services for money
a person who writes radio or tv advertisements

huckster (verb)	seller (verb)
sell or offer for sale from place to place
wrangle (over a price, terms of an agreement, etc.)