slop-seller vs dealer

slop-seller and dealer both are nouns.

Word	Noun	Adjective	Verb	Adverb
slop-seller	Yes	No	No	No
dealer	Yes	No	No	No

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

slop-seller: a dealer in cheap ready-made clothing
dealer: someone who purchases and maintains an inventory of goods to be sold

Other hypernyms of slop-seller include bargainer, monger, trader.

slop-seller (noun)	dealer (noun)
a dealer in cheap ready-made clothing	a firm engaged in trading
	a seller of illicit goods
	the person who distributes the playing cards in a card game
	someone who purchases and maintains an inventory of goods to be sold
	the major party to a financial transaction at a stock exchange; buys and sells for his own account