aeroplane vs aviator

aeroplane

noun
  • Synonym of airplane. A powered heavier-than-air aircraft with fixed wings. 

  • Any of various nymphalid butterflies, of various genera, having a slow gliding flight. Also called planes. 

verb
  • To fly in an aeroplane. 

  • To transport by aeroplane. 

aviator

noun
  • An aircraft pilot. The use of the word may imply claims of superior airmanship, as in navy aviator vs. air force pilot. 

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