/ Dictionary / Index A audio response unit: Meaning and Definition of Find definitions for: au'dio response' u"nit Pronunciation: [key] — Computers. Computers. a device that enables a computer to give a spoken response by generating sounds similar to human speech. a similar device that selects from a vocabulary of prerecorded words. Abbr.: ARU Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. audiophile audiotape Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language