broker vs businessperson

broker and businessperson both are nouns.

Word	Noun	Adjective	Verb	Adverb
broker	Yes	No	Yes	No
businessperson	Yes	No	No	No

As nouns, businessperson is a hypernym of broker; that is, businessperson is a word with a broader meaning than broker:

broker: a businessman who buys or sells for another in exchange for a commission
businessperson: a capitalist who engages in industrial commercial enterprise

Other hypernyms of broker include bourgeois.

broker (noun)	businessperson (noun)
a businessman who buys or sells for another in exchange for a commission	a capitalist who engages in industrial commercial enterprise

broker (verb)	businessperson (verb)
act as a broker