earpiece vs telephone

earpiece

noun
  • A receiver of a telephone to hold near to one's ear. 

  • The arm on a pair of glasses that hooks over the ear to hold them in place. 

  • A speaker placed inside or held near to the ear. 

telephone

noun
  • A telecommunication device (originally mechanical, and now electronic) used for two-way talking with another person (now often shortened to phone). 

  • The game of Chinese whispers. 

  • Chinese whispers; a situation in which an initial message has been distorted and misunderstood by being passed from person to person. 

verb
  • To convey (a message) via telephone. 

  • To (attempt to) contact someone using a telephone. 

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