/ Dictionary / Index A American Stock Exchange: Meaning and Definition of Find definitions for: Amer'ican Stock' Exchange" Pronunciation: [key] the second largest stock exchange in the U.S., located in New York City. Abbr.: ASE, A.S.E. Also calledFormerly,Cf. New York Stock Exchange. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. American star American Tragedy, An* Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language