high gear

English Thesaurus

1. a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed (noun.artifact)

hypernym	:	gear, gear mechanism,
definition	:	a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle) (noun.artifact)

hyponym	:	overdrive,
definition	:	a high gear used at high speeds to maintain the driving speed with less output power (noun.artifact)

part meronym	:	auto, automobile, car, machine, motorcar,
definition	:	a motor vehicle with four wheels; usually propelled by an internal combustion engine (noun.artifact)