passenger vs trainer

passenger

verb
  • To ride as a passenger in a vehicle. 

noun
  • One who rides or travels in a vehicle, but who does not operate it and is not a member of the crew. 

  • A young hunting bird that can fly and is taken while it is still in its first year. 

  • A moth, Dysgonia algira 

  • Somebody in a team who does not do their fair share of the work. 

  • Any of the individual warheads of a MIRV missile. 

trainer

noun
  • A person responsible for treating injuries sustained by players during matches; a physiotherapist. 

  • A person who trains another; a coach. 

  • A patch for a video game that applies cheats. 

  • A running shoe or sneaker. 

  • A piece of indoor equipment allowing a bicycle to be ridden while stationary. 

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