Verb (used with object) : to jump a narrow stream. ,She jumped the horse over the fence. ,to jump the third grade in school. ,The boss jumped his son from mail clerk to plant manager. ,One car jumped the red light and collided with a truck. ,The store jumped its prices. ,The thugs jumped him in a dark alley. ,The robbers jumped town. ,He jumped a plane for Chicago.    From Dictionary.com.