Definition of "auditory"

auditory¹

/ˈɔː.dɪ.tə.ɹi/

adjective
not comparable
1. Of, or relating to hearing, or to the sense or organs of hearing.

auditory²

/ˈɔː.dɪ.tə.ɹi/

noun
plural auditories
1. (archaic) Synonym of audience.
  Quotations
  ...and because though these learned Gentlemen (sayes he, turning to his two friends) need not fear to discourse before any Auditory...
  1661, Robert Boyle, The Sceptical Chymist‎, page 7
  A general murmur of assent arose from his little auditory.
  1834, L[etitia] E[lizabeth] L[andon], chapter IV, in Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), page 26
2. (archaic) Synonym of auditorium.