hand truck vs railcar

hand truck

noun
  • An L-shaped box-moving handcart with handles at one end, wheels at the base, with a small ledge to set objects on, flat against the floor when the hand-truck is upright. It makes otherwise bulky and heavy objects easier to move. 

  • Synonym of pallet jack 

railcar

noun
  • A self-propelled railway vehicle for passengers, similar to a bus. 

  • Any unpowered railway vehicle 

  • A powered single railway vehicle designed for passenger transport, with a driver's cab in both ends; Not to be confused with motor coach/motorcar, which is a powered railway vehicle capable to haul a train. 

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