(transitive) To start a motor vehicle by passing an electrical current from a charged battery to the discharged ("dead" or "flat") battery of the vehicle being started, by using booster cables to temporarily connect the two batteries in parallel.

(idiomatic, transitive, intransitive, US) to begin again; to return to the beginning

The codon at which translation of mRNA into protein starts, encoding the first amino acid.

(idiomatic) An advantage consisting in starting a competition or task earlier than might be expected; given (or taken), for example, prior to the beginning of a race.

(sports) The act of an athlete starting a race before being signaled to do so. / (American football) The act of an offensive player moving across the line of scrimmage prior to the snap.

Alternative spelling of kick start

Alternative spelling of kick start

In the United States, a government-funded preschool program for impoverished children.

(mathematics, in two dimensions) Describing a multiple spiral that starts at the origin and divides the plane into multiple regions

(mathematics, in two dimensions) Describing a simple spiral that starts at a point at the origin and does not divide the plane / (mathematics, in three dimensions) Describing a section of a simple helix