audition vs auricle

audition

noun
  • The sense of hearing. 

  • A performance, by an aspiring performer, to demonstrate suitability or talent. 

  • An act of hearing; being heard. 

  • Something heard. 

verb
  • To evaluate one or more performers in through an audition. 

  • To take part in such a performance. 

auricle

noun
  • The outer ear or pinna. 

  • Synonym of atrium. 

  • An anterior ear-shaped appendage of the left or right atrium of the human heart. 

  • Any appendage in the shape of an ear or earlobe. 

How often have the words audition and auricle occurred in a corpus of books? (source: Google Ngram Viewer )