crossing vs gangboard

crossing

noun
  • A voyage across a body of water. 

  • A pair of intersecting edges. 

  • The volume formed by the intersection of chancel, nave and transepts in a cruciform church; often with a tower or cupola over it. 

  • A place at which a river, railroad, or highway may be crossed. 

  • The act by which terrain or a road etc. is crossed. 

  • A pair of parallel lines printed on a cheque 

  • Movement into a crossed position. 

  • An intersection where roads, lines, or tracks cross. 

adj
  • Extending or lying across; in a crosswise direction. 

gangboard

noun
  • A board or plank placed within or without the bulwarks of a vessel's waist for lookouts to walk or stand on. 

  • The boards ending the hammock-nettings at either side of the entrance from the accommodation-ladder to the deck. 

  • A board or plank used as a temporary footbridge between a ship and a dockside or any gap such as scaffolding. 

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