brokerage house vs brokerage

brokerage house and brokerage both are nouns.

Word	Noun	Adjective	Verb	Adverb
brokerage house	Yes	No	No	No
brokerage	Yes	No	No	No

As nouns, brokerage house and brokerage are synonyms defined as:

brokerage house and brokerage: place where a broker conducts his business

brokerage house (noun)	brokerage (noun)
place where a broker conducts his business	place where a broker conducts his business
	a stock broker's business; charges a fee to act as intermediary between buyer and seller
	the business of a broker; charges a fee to arrange a contract between two parties