dilute vs doctor

dilute

verb
  • To weaken, especially by adding a foreign substance. 

  • 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 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. 

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

doctor

verb
  • To adulterate, drug, or poison (drink). 

  • To act as a medical doctor to. 

  • To physically alter (medically or surgically) a living being in order to change growth or behavior. 

  • To act as a medical doctor. 

  • To alter or make obscure, as with the intention to deceive, especially a document. 

  • To genetically alter an extant species. 

  • To make (someone) into an (academic) doctor; to confer a doctorate upon. 

noun
  • A physician; a member of the medical profession; one who is trained and licensed to heal the sick or injured. The final examination and qualification may award a doctor degree in which case the post-nominal letters are D.O., DPM, M.D., DMD, DDS, in the US or MBBS in the UK. 

  • A person who has attained a doctorate, such as a Ph.D. or Th.D. or one of many other terminal degrees conferred by a college or university. 

  • A veterinarian; a medical practitioner who treats non-human animals. 

  • A fish, the friar skate. 

  • A nickname for a person who has special knowledge or talents to manipulate or arrange transactions. 

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