pi Hear it!

pi1 definition

pi (pī)

noun pl. pies

  1. a mixed, disordered collection of printing type
  2. any jumble or mixture

Etymology: see pie

transitive verb pied, pieing pie′·ing or piing pi′·ing

to make jumbled; mix up (type)
pi2 definition

pi (pī)

noun

  1. the sixteenth letter of the Greek alphabet (Π, π)
    1. the symbol (π) designating the ratio of the circumference of a circle to its diameter
    2. the ratio itself, equal to 3.14159265+: often approximated as

Etymology: Gr pi, earlier pei < Sem, as in Heb pē

PI definition

PI

private investigator

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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