directional vs winker

directional

noun
  • Something that indicates direction, such as a vehicle's turn signal. 

adj
  • Indicating direction. 

  • Of or relating to guidance or help. 

winker

noun
  • An eye. 

  • A screen attached to the bridle of a horse or other domesticated animal preventing it from being able to see things to its side. 

  • An eyelash. 

  • A small bellows in an organ, regulated by a spring, controlling variations of wind pressure. 

  • A player of the game of tiddlywinks. 

  • Somebody who winks; somebody who connives. 

  • The winking membrane of a bird's eye; the winking muscle. 

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