crate vs freighter

crate

noun
  • A large open box or basket, used especially to transport fragile goods. 

  • A vehicle (car, aircraft, spacecraft, etc.) seen as unreliable. 

  • In the Rust programming language, a binary or library. 

verb
  • To keep in a crate. 

  • To put into a crate. 

freighter

noun
  • One for whom freight is transported. 

  • One employed in receiving and forwarding freight. 

  • An aircraft used mainly to carry freight; a cargo aircraft or cargo plane. 

  • A vessel used mainly to carry freight; a cargo ship. 

  • One who loads a ship, or one who charters and loads a ship. 

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