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


  • Having a low concentration.
  • Weak; reduced in strength by dilution; diluted.
  • Of an animal: having a lighter-coloured coat than is usual.


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


Opposite words


  • From Latin dīlūtus, from dīluere, from dī-, dis- + luere. See lave, and compare deluge.

Modern English dictionary

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