monger vs dealer

monger and dealer both are nouns.

Word	Noun	Adjective	Verb	Adverb
monger	Yes	No	Yes	No
dealer	Yes	No	No	No

As nouns, monger and dealer are synonyms defined as:

monger and dealer: someone who purchases and maintains an inventory of goods to be sold

Other synonyms of monger include bargainer, trader.

monger (noun)	dealer (noun)
someone who purchases and maintains an inventory of goods to be sold	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

monger (verb)	dealer (verb)
sell or offer for sale from place to place