(Homonym: pie).
The 16th letter of the Greek alphabet.

1 Philippine Islands
2 private investigator
3 programmed instruction

1. Not intended to appear in final printing
2. Capable of being inserted only by hand

The ratio of the circumference to the diameter of a circle; SYN. 3.14159265358979323846..
Common approximations to pi are 22/7 and 3.14, although the value 3 can be used as a rough estimation.
A mathematical constant equal to approximately 3.1415926535897932, describing the ratio of the circumference of a circle to its diameter.

1. To spill or throw (type or type matter) into disorder
2. To become pied