1 [pahy]
a baked food having a filling of fruit, meat, pudding, etc., prepared in a pastry-lined pan or dish and often topped with a pastry crust: apple pie; meat pie.
a layer cake with a filling of custard, cream jelly, or the like: chocolate cream pie.
a total or whole that can be divided: They want a bigger part of the profit pie.
an activity or affair: He has his finger in the political pie too.
easy as pie, extremely easy or simple.
nice as pie, extremely well-behaved, agreeable, or the like: The children were nice as pie.
pie in the sky,
the illusory prospect of future benefits: Political promises are often pie in the sky.
a state of perfect happiness; utopia: to promise pie in the sky.

1275–1325; Middle English, of obscure origin

pielike, adjective
Dictionary.com Unabridged


2 [pahy]

1200–50; Middle English < Old French < Latin pīca, akin to pīcus woodpecker


3 [pahy]
noun, verb (used with object), pied, pieing.


4 [pahy]
(in England before the Reformation) a book of ecclesiastical rules for finding the particulars of the service for the day.
Also, pye.

1470–80; translation of Latin pīca pie2; the allusion is obscure; cf. pica1


5 [pahy]
a former bronze coin of India, the 12th part of an anna.
Compare naya paisa, paisa, pice.

1855–60; < Marathi pā'ī literally, a fourth

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pi or pie2 (paɪ)
n , pl pies
1.  a jumbled pile of printer's type
2.  a jumbled mixture
vb , pies, pies, piing, pied, pies, pieing, pied
3.  to spill and mix (set type) indiscriminately
4.  to mix up
[C17: of uncertain origin]
pie or pie2
[C17: of uncertain origin]

pie1 (paɪ)
1.  a baked food consisting of a sweet or savoury filling in a pastry-lined dish, often covered with a pastry crust
2.  have a finger in the pie
 a.  to have an interest in or take part in some activity
 b.  to meddle or interfere
3.  pie in the sky illusory hope or promise of some future good; false optimism
[C14: of obscure origin]

pie2 (paɪ)
an archaic or dialect name for magpie
[C13: via Old French from Latin pīca magpie; related to Latin pīcus woodpecker]

pie3 (paɪ)
n, —vb
printing a variant spelling of pi

pie4 (paɪ)
a very small former Indian coin worth one third of a pice
[C19: from Hindi pā'ī, from Sanskrit pādikā a fourth]

pie or pye5 (paɪ)
history a book for finding the Church service for any particular day
[C15: from Medieval Latin pica almanac; see pica1]
pye or pye5
[C15: from Medieval Latin pica almanac; see pica1]

pie6 (paɪ)
informal (NZ) be pie on to be keen on
[from Māori pai ana]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"pastry," c.1300, from M.L. pie "meat or fish enclosed in pastry," perhaps related to M.L. pia "pie, pastry," also possibly connected with pica "magpie" (see pie (2)) on notion of the bird's habit of collecting miscellaneous objects. Not known outside Eng., except Gaelic pighe,
which is from Eng. In the Middle Ages, a pie had many ingredients, a pastry but one. Fruit pies began to appear c.1600. Fig. sense of "something easy" is from 1889. Pie-eyed "drunk" is from 1904. Phrase pie in the sky is 1911, from Joe Hill's Wobbly parody of hymns. Pieman is not attested earlier than the nursery rhyme "Simple Simon" (c.1820).

"magpie," mid-13c., from O.Fr. pie (13c.), from L. pica "magpie," related to picus "woodpecker," Umbrian peica "the magpie," Skt. pikah "Indian cuckoo," O.N. spætr, Ger. Specht "woodpecker" (see magpie).

printers' slang for "a mass of type jumbled together" (also pi, pye), 1659, perhaps from pie (1) on notion of a "medley," or pie (2) (see pica).
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

PIE definition

A language from CMU similar to Actus.

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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American Heritage
Abbreviations & Acronyms
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage
Idioms & Phrases


In addition to the idiom beginning with pie, also see apple-pie order; easy as pie; eat crow (humble pie); finger in the pie; slice of the pie.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Encyclopedia Britannica


dish made by lining a shallow container with pastry and filling the container with a sweet or savoury mixture. A top crust may be added; the pie is baked until the crust is crisp and the filling is cooked through. Pies have been popular in the United States since colonial times, so much so that apple pie has become symbolic of traditional American home cooking. The typical American pie is round, 8-10 inches (20-25 cm) in diameter, 2-3 inches (5-8 cm) thick, and usually contains a sweet filling of fruit, custard, or a pastry cream. Some American specialties are pecan pie, pumpkin custard pie (traditionally served on Thanksgiving Day), lemon pie with a soft meringue topping, and shoofly pie, a Pennsylvania Dutch (see Pennsylvania German) pie with a rich filling containing molasses.

Learn more about pie with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
There's no need to chill a pie crust for three hours.
Likewise, pumpkin pie went missing due to a lack of crust ingredients.
The abundances of different isotopes are shown as pie charts.
We pie lovers demand to know why so many family restaurants no longer have
  cases full of fresh homemade pies.
Image for pie
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