ark vs ocean liner

ark

noun
  • A spacious type of boat with a flat bottom. 

  • A decorated cabinet at the front of a synagogue, in which Torah scrolls are kept. 

  • Something affording protection; safety, shelter, refuge 

  • The Ark of the Covenant. 

  • A large box with a flat lid. 

  • Noah's Ark: the ship built by Noah to save his family and a collection of animals from the deluge. 

ocean liner

noun
  • a narrow-beam passenger ship designed for high speed trans-oceanic travel 

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