bombproof vs scuttle

bombproof

noun
  • An air-raid shelter, a structure designed to give protection against air raids and bombs. 

adj
  • Sufficiently strong to resist the effects of a blast from a bomb. 

verb
  • To make resistant to bomb blasts. 

scuttle

noun
  • A hatch that provides access to the roof from the interior of a building. 

  • A small hatch or opening in a boat. Also, small opening in a boat or ship for draining water from open deck. 

  • A broad, shallow basket. 

  • A container like an open bucket (usually to hold and carry coal). 

  • A quick pace; a short run. 

verb
  • To deliberately sink one's ship or boat by any means, usually by order of the vessel's commander or owner. 

  • To cut a hole or holes through the bottom, deck, or sides of (as of a ship), for any purpose. 

  • To deliberately wreck one's vehicle (of any sort). 

  • To undermine or thwart oneself or one's position or property, especially deliberately. 

  • To move hastily, to scurry. 

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