securities firm se·cu·ri·tiesfirm uncommon noun 1. a stock broker''s business; charges a fee to act as intermediary between buyer and seller Synonymsbrokeragebrokerage firmsecurities firm Related words Word family broker Broader terms nondepository financial institution Narrower terms bucket shopmarriage brokerage Part of agent WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
