nickel vs silver-grey

nickel

noun
  • A silvery elemental metal with an atomic number of 28 and symbol Ni. 

  • Interstate 5, a highway that runs along the west coast of the United States. 

  • Five hundred dollars. 

  • A playing card with the rank of five 

  • A defensive formation with five defensive backs, one of whom is a nickelback, instead of the more common four. 

  • Five dollars. 

  • A five-year prison sentence. 

  • An airborne propaganda leaflet. 

  • A coin worth 5 cents. 

verb
  • To distribute airborne leaflet propaganda. 

  • To plate with nickel. 

silver-grey

noun
  • A shiny pale grey colour. 

adj
  • Of a shiny pale grey colour. 

How often have the words nickel and silver-grey occurred in a corpus of books? (source: Google Ngram Viewer )