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A.Word.A.Daywith Anu Garg
1. A confused mixture, originally a jumble of printing types. Also spelled as pie.
2. The 16th letter of the Greek alphabet.
3. A mathematical constant (approximately 3.14159), representing the ratio of the circumference of a circle to its diameter.
For 1: Origin uncertain. Earliest documented use: 1659.
For 2, 3: From Greek pi/pei, of Semitic origin. Earliest documented use: 1425.
"The Indiana soldier's letter, however, 'has completely `knocked into pi` all the arguments [they have] employed.'"
Glenn David Brasher; Peninsula Campaign and the Necessity of Emancipation; The University of North Carolina Press; 2012.
See more usage examples of pi in Vocabulary.com's dictionary.
A THOUGHT FOR TODAY:The art of progress is to preserve order amid change, and to preserve change amid order. -Alfred North Whitehead, mathematician and philosopher (1861-1947)