dilute vs foil

dilute

noun
  • An animal having a lighter-coloured coat than is usual. 

verb
  • To cause the value of individual shares or the stake of a shareholder to decrease by increasing the total number of shares. 

  • To become attenuated, thin, or weak. 

  • To weaken, especially by adding a foreign substance. 

  • To make thinner by adding solvent to a solution, especially by adding water. 

adj
  • Of an animal: having a lighter-coloured coat than is usual. 

  • Having a low concentration. 

  • Weak; reduced in strength by dilution; diluted. 

foil

noun
  • The track of an animal. 

  • Thin aluminium/aluminum (or, formerly, tin) used for wrapping food. 

  • A thin, transparent plastic material on which marks are made and projected for the purposes of presentation. See transparency. 

  • A very thin sheet of metal. 

  • A thin layer of metal put between a jewel and its setting to make it seem more brilliant. 

  • A very thin sword with a blunted (or foiled) tip 

  • Anything that acts by contrast to emphasise the characteristics of something. 

  • In literature, theatre/theater, etc., a character who helps emphasize the traits of the main character and who usually acts as an opponent or antagonist, but can also serve as the sidekick of the protagonist. 

  • One of the incorrect answers presented in a multiple-choice test. 

  • A stylized flower or leaf. 

  • Failure when on the point of attainment; defeat; frustration; miscarriage. 

verb
  • To expand a product of two or more algebraic expressions, typically binomials. 

  • To blunt; to dull; to spoil. 

  • To prevent (someone) from accomplishing something. 

  • To prevent (something) from being accomplished. 

  • To cover or wrap with foil. 

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