Source : Webster's Revised Unabridged Dictionary (1913)

Audition \Au*di"tion\, n. [L. auditio.]
   The act of hearing or listening; hearing.

         Audition may be active or passive; hence the difference
         between listening and simple hearing.    --Dunglison.

Source : WordNet®

audition
     n 1: the ability to hear; the auditory faculty; "his hearing was
          impaired" [syn: {hearing}, {auditory sense}, {sense of
          hearing}, {auditory modality}]
     2: a test of the suitability of a performer [syn: {tryout}]
     v : perform in order to get a role; "She auditioned for a role
         on Broadway" [syn: {try out}]