activate vs crawl

activate

verb
  • To render more reactive; excite. 

  • To organize or create a military unit or station. 

  • To bring a player back after an injury. 

  • To put a device, mechanism (alarm etc.) or system into action or motion; to trigger, to actuate, to set off, to enable. 

  • To render a substance radioactive. 

  • To hasten a chemical reaction, especially by heating. 

  • To remove the limitations of demoware by providing a license; to unlock. 

  • To render a molecule reactive, active, or effective in performing its function. 

  • To encourage development or induce increased activity; to stimulate. 

  • To aerate in order to aid decomposition of organic matter. 

crawl

verb
  • To feel a swarming sensation. 

  • To visit files or web sites in order to index them for searching. 

  • To swim using the crawl stroke. 

  • To move forward slowly, with frequent stops. 

  • To act in a servile manner. 

  • To creep; to move slowly on hands and knees, or by dragging the body along the ground. 

  • To move over (an area) slowly, with frequent stops. 

  • To move over (an area) on hands and knees. 

  • Followed by with: see crawl with. 

noun
  • A rapid swimming stroke with alternate overarm strokes and a fluttering kick. 

  • A very slow pace. 

  • The act of moving slowly on hands and knees, etc. 

  • A piece of horizontally or vertically scrolling text overlaid on the main image. 

  • The act of sequentially visiting a series of similar establishments (i.e., a bar crawl). 

  • A pen or enclosure of stakes and hurdles for holding fish. 

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