first class vs voicemail

first class

noun
  • premier rank. 

  • the third year of primary school, following after the junior and senior infant levels. 

  • One of two classes of city government in the U.S. state of Kentucky, in which cities elect a mayor and aldermen. 

adj
  • Of, or relating to the most luxurious and expensive class of accommodation on a train, ship, hotel, etc. 

  • Great, very enjoyable. 

  • Of, or relating to a first class match. 

  • Belonging to the best or top group in a system of classification. 

  • Of, or relating to a class of mail to be delivered before second class. 

  • Of, or relating to a treatment like that for a first-class citizen. 

voicemail

noun
  • An individual message on such a system. 

  • A computerized interactive system for storing, processing and reproducing verbal messages left through a conventional telephone network. 

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