WordReference Random House Unabridged Dictionary of American English © 2025
au′dio response′ u′nit, [Computers.]
  1. a device that enables a computer to give a spoken response by generating sounds similar to human speech.
  2. a similar device that selects from a vocabulary of prerecorded words. Abbr.: ARU

'audio response unit' also found in these entries (note: many are not synonyms or translations):
ARU - speak

Forum discussions with the word(s) "audio response unit" in the title:


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