bulge vs nacelle

bulge

noun
  • The bilge of a vessel. 

  • The outline of male genitals visible through clothing. 

  • A sudden rise in value or quantity. 

  • Something sticking out from a surface; a swelling, protuberant part; a bending outward, especially when caused by pressure. 

  • The bilge or protuberant part of a cask. 

verb
  • To bilge, as a ship; to founder. 

  • To stick out from (a surface). 

nacelle

noun
  • The submersed providers of buoyancy of a SWATH hulled boat. 

  • A separate streamlined enclosure mounted on an aircraft to house an engine, cargo, or crew. 

  • The compartment that holds passengers on a hot-air balloon, a dirigible, or an aerostat; a gondola. 

  • The part between the tower and rotor of a wind turbine. 

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