Meaning of pi


Pronunciation: (pī), [key]
— pl. pis.
  1. the 16th letter of the Greek alphabet (II, &pgr;).
  2. the consonant sound represented by this letter.
    1. the letter &pgr;, used as the symbol for the ratio of the circumference of a circle to its diameter.
    2. the ratio itself: 3.141592+.


Pronunciation: (pī), [key]
— n., pl. v., pies, pied, pi•ing.
  1. printing types mixed together indiscriminately.
  2. any confused mixture; jumble.
  1. to reduce (printing types) to a state of confusion.
  2. to jumble.


Pronunciation: [key]
  1. personal injury.
  2. principal investigator.
  3. private investigator.


Pronunciation: [key]
  1. piaster.


Pronunciation: [key]
  1. Philippine Islands.
  2. private investigator.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
  • pi (Thesaurus)