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[spahrk-pluhg] /ˈspɑrkˌplʌg/
verb (used with object), sparkplugged, sparkplugging. Informal.
to lead, inspire, or animate something or someone.
Origin of sparkplug
v. use of spark plug Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for sparkplug
  • Initially, combustion of the reactant mixture is initiated using a sparkplug.
  • To say the technology sector is the sparkplug for economic vitality is an understatement.
  • Examination of the engine found one of the two sparkplugs out of its cylinder hanging by the sparkplug wire.
  • There is sufficient oil in the crankcase and even a brand new sparkplug, bright and shiny.
  • Some of the gas engines had an extra or help cylinder, and one sparkplug on the main cylinder.

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