turbocharge Syllabification: (tur·bo·charge)Pronunciation: /ˈtərbōˌCHärj/Definition of turbocharge verb [with object] (often as adjective turbocharged) equip (an engine or vehicle) with a turbocharger. add speed or energy to (something):his turbocharged style of choreographyturbocharge in other Oxford dictionaries Definition of turbocharge in the British & World English dictionary