pi

I

[[t]paɪ[/t]]

n. pl. pis

1) ling. the 16th letter of the Greek alphabet (Π, π)

2) math.

a) the letter π, used as the symbol for the ratio of the circumference of a circle to its diameter

b) the ratio itself: 3.14159+

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Etymology: 1835–45; < Gk pî, peî; used in math to represent Gk periphérion periphery II

pi or pie II

[[t]paɪ[/t]] n. pl. pies,

1) pri printing type mixed together indiscriminately

2) any confused mixture; jumble

3) pri to jumble (printing type)

4) to mix up; jumble

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Etymology: 1650–60; orig. uncert.