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See more synonyms for supercharge on Thesaurus.com
verb (used with object), su·per·charged, su·per·charg·ing.
  1. to charge with an abundant or excessive amount, as of energy, emotion, or tension.
  2. to supply air to (an internal-combustion engine) at greater than atmospheric pressure.
  3. pressurize(def 3).
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Origin of supercharge

First recorded in 1760–70; super- + charge
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for supercharge


verb (tr)
  1. to increase the air intake pressure of (an internal-combustion engine) with a supercharger; boost
  2. to charge (the atmosphere, a remark, etc) with an excess amount of (tension, emotion, etc)
  3. to apply pressure to (a fluid); pressurize
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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 supercharge


1919, originally of internal combustion engines, from super- + past tense of charge (v.). Related: Supercharged; supercharging.

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Online Etymology Dictionary, © 2010 Douglas Harper