[pep] Informal.
lively spirits or energy; vigor; animation.
Verb phrases, past and past participle pepped up, present participle pepping up.
pep up, to make or become spirited, vigorous, or lively; animate: We need something to pep up this party.

1840–50; short for pepper

pepful, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pep (pɛp)
1.  high spirits, energy, or vitality
vb (usually foll by up) , peps, pepping, pepped
2.  to liven by imbuing with new vigour
[C20: short for pepper]

PEP (pɛp)
n acronym for
1.  personal equity plan: a method of saving in the U.K. with certain tax advantages, in which investments up to a fixed annual value can be purchased: replaced by the ISA in 1999 but arrangements for existing PEPs remain unchanged
abbreviation for
2.  political and economic planning

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

"vigor, energy," 1912, shortened form of pepper, which was used in the figurative sense of "spirit, energy," from at least 1847. Peppy "full of pep," first recorded 1922. Pep rally is attested from 1945; pep talk from 1926.
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

PEP definition

peak envelope power

The Free On-line Dictionary of Computing, © Denis Howe 2010
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American Heritage
Abbreviations & Acronyms
Parkinson's Educational Program
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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