cab vs taxi

cab

verb
  • To travel by taxicab. 

noun
  • Shelter at the top of an air traffic control tower or fire lookout tower. 

  • Any of several four-wheeled carriages; a cabriolet. 

  • Compartment at the front of a truck or train for the driver. 

  • Synonym of taxi 

  • An arcade cabinet, the unit in which a video game is housed in a gaming arcade. 

  • A former Hebrew unit of volume, about equal to 1.3 L as a dry measure or 1.25 L as a liquid measure. 

taxi

verb
  • To travel by taxicab. 

  • To move an aircraft on the ground under its own power. 

noun
  • A vehicle that may be hired for single journeys by members of the public, driven by a taxi driver. 

  • A share taxi. 

  • The movement of an aircraft across an airport's surface under its own power; a phase of aircraft operation involving this movement. 

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