tide vs vortex

tide

noun
  • Tendency or direction of causes, influences, or events; course; current. 

  • The period of twelve hours. 

  • The periodic change of the sea level, particularly when caused by the gravitational influence of the sun and the moon. 

  • Something which changes like the tides of the sea. 

  • A stream, current or flood. 

verb
  • To pour a tide or flood. 

  • To cause to float with the tide; to drive or carry with the tide or stream. 

  • To work into or out of a river or harbor by drifting with the tide and anchoring when it becomes adverse. 

vortex

noun
  • Anything that inevitably draws surrounding things into its current. 

  • Anything that involves constant violent or chaotic activity around some centre. 

  • A whirlwind, whirlpool, or similarly moving matter in the form of a spiral or column. 

  • A supposed collection of particles of very subtle matter, endowed with a rapid rotary motion around an axis which was also the axis of a sun or planet; part of a Cartesian theory accounting for the formation of the universe, and the movements of the bodies composing it. 

  • Any of numerous species of small Turbellaria belonging to Vortex and allied genera. 

verb
  • To mix using a vortex mixer 

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