[ amp ]
/ æmp /


verb (used with object)

to excite or energize (usually followed by up): We were so amped up for the game that we forgot to eat.

Nearby words

  1. amour-propre,
  2. amowt,
  3. amoxicillin,
  4. amoxycillin,
  5. amoy,
  6. amp up,
  7. amp-hr,
  8. amp.,
  9. ampas,
  10. ampelopsis

Origin of amp

First recorded in 1960–65; by shortening Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for amp up

amp up

verb (tr, adverb) informal

to increase
to increase the power or force of (something)
to excite, arouse, or work up (a person, emotions, etc)


/ (æmp) /


an ampere
informal an amplifier


Australian informal to excite or become excited
See also amp up


abbreviation for

adenosine monophosphate
Australian Mutual Provident Society
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for amp up



1886 as an abbreviation of ampere; 1967 as an abbreviation of amplifier.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for amp up


[ ā′em-pē ]


Adenosine monophosphate; a mononucleotide found in animal cells and reversibly convertible to ADP and ATP.adenine nucleotide adenylic acid

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for amp up


[ ā′ĕm-pē ]

Short for adenosine monophosphate. An organic compound that is composed of adenosine and one phosphate group. It is one of the nucleotides present in DNA and RNA, and is also the fundamental component of ATP and ADP. During certain cellular metabolic processes, AMP forms from ADP when the latter loses a phosphate group, and AMP forms ADP by acquiring a phosphate group. Chemical formula: C10H14N5O7P.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for amp up


[ (am-peer) ]

A unit of electric current (see also current). One ampere corresponds to a certain number of electrons passing a fixed point each second.


A typical household's electrical supply includes a total of 120 to 200 amps; a typical house circuit carries 15 to 50 amps.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.