/ Dictionary / Index R registered representative: Meaning and Definition of Find definitions for: reg'istered represent'ative Pronunciation: [key] — Stock Exchange. Stock Exchange. an employee of a member firm of a stock exchange, authorized to execute orders for the clients of the firm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. registered nurse register of wills Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language