Added 2 October 2026 jumpstart noun Categories: ActionsRare Words noun ! Definition from Wiktionary (CC BY-SA). More about jumpstart at Wordnik → Where our words come from → Alternative form of jump-start. verb Alternative form of jump-start. Related Words: jumpkick-startlaunchboostjump-startspuractivatestimulatereinvigoraterevitalizereviverestart Back to today's word