couch vs dilute

couch

noun
  • The den of an otter. 

  • A mass of steeped barley spread upon a floor to germinate, in malting; or the floor occupied by the barley. 

  • A preliminary layer, as of colour or size. 

  • Psychotherapy. 

  • Couch grass, a species of persistent grass, Elymus repens, usually considered a weed. 

  • An item of furniture, often upholstered, for the comfortable seating of more than one person; a sofa. 

  • A bed, a resting-place. 

verb
  • To attach a thread onto fabric with small stitches in order to add texture. 

  • To transfer (for example, sheets of partly dried pulp) from the wire mould to a felt blanket for further drying. 

  • To phrase in a particular style; to use specific wording for. 

  • To arrange or dispose as if in a bed. 

  • To bend the body, as in reverence, pain, labor, etc.; to stoop; to crouch. 

  • To lay something upon a bed or other resting place. 

  • To lay or deposit in a bed or layer; to bed. 

  • To lie down; to recline (upon a couch or other place of repose). 

  • To lower (a spear or lance) to the position of attack. 

  • In the treatment of a cataract in the eye, to displace the opaque lens with a sharp object such as a needle. The technique is regarded as largely obsolete. 

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. 

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