freighter vs holder

freighter

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

  • 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 for whom freight is transported. 

holder

noun
  • One who is employed in the hold of a vessel. 

  • A thing that holds. 

  • A person who temporarily or permanently possesses something. 

  • The defending champion. 

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