express vs falsetto

express

verb
  • To convey or communicate; to make known or explicit. 

  • To transcribe deoxyribonucleic acid into messenger RNA. 

  • To press, squeeze out (especially said of milk). 

  • To translate messenger RNA into protein. 

adv
  • Moving or operating quickly, as a train not making local stops. 

noun
  • An express office. 

  • That which is sent by an express messenger or message. 

  • A mode of transportation, often a train, that travels quickly or directly. 

  • A service that allows mail or money to be sent rapidly from one destination to another. 

  • An express rifle. 

  • A messenger sent on a special errand; a courier. 

adj
  • Truly depicted; exactly resembling. 

  • Moving or operating quickly, as a train not making local stops. 

  • Specific or precise; directly and distinctly stated; not merely implied. 

  • Providing a more limited but presumably faster service than a full or complete dealer of the same kind or type. 

falsetto

verb
  • To sing or utter in falsetto. 

noun
  • A person who sings in falsetto. 

  • The "false" (singing) voice in any human, usually airy and lacking a purity of vowels; created by utilizing the next highest vocal folds above those used for speech and normal range singing. It is commonly confused with the head voice register. 

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