dealer vs moneyman

dealer and moneyman both are nouns.

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

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

dealer: the major party to a financial transaction at a stock exchange; buys and sells for his own account
moneyman: a person skilled in large scale financial transactions

Other hypernyms of dealer include financier.

dealer (noun)	moneyman (noun)
a firm engaged in trading	a person skilled in large scale financial transactions
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