say it: JUHMP-stahrt
jumpstart is a verb and noun meaning "start (a car engine whose battery is dead) by connecting it to another car's battery". It carries 3 recorded senses.
start (a car engine whose battery is dead) by connecting it to another car's battery
start or re-start vigorously
“The Secretary of State intends to jumpstart the Middle East Peace Process”
starting an automobile engine that has a weak battery by means of jumper cables to another car
“my battery was dead so I had to get a jumpstart from my neighbor”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for jumpstart come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.