I left my headlights on all night. Could you give me a jump-start?.
To start a motor vehicle by passing an electrical current from a charged battery to the discharged battery of the vehicle being started, by means of a booster cable connecting the two batteries
Giving a really good speech at the convention could jump-start her political career.
To jump-start a vehicle which has a flat battery means to make the engine start by getting power from the battery of another vehicle, using special cables called jump leads. He was huddled with John trying to jump-start his car. Jump-start is also a noun. I drove out to give him a jump start because his battery was dead
To jump-start a system or process that has stopped working or progressing means to do something that will make it start working quickly or effectively. The EU is trying to jump start the peace process. Jump-start is also a noun. attempts to give the industry a jump-start