fingerboard vs gearstick

fingerboard

noun
  • A miniature skateboard that is driven with the fingers. 

  • A flat or roughly flat strip on the neck of a stringed instrument, against which the strings are pressed to shorten the vibrating length and produce notes of higher pitches. 

gearstick

noun
  • The lever used to change gear in a vehicle. 

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