Oxford Advanced American Dictionary

Definition of four-wheel drive noun from the Oxford Advanced Learner's Dictionary

four-wheel drive

noun
four-wheel drive pronunciation English four-wheel drive pronunciation American
(especially North American English all-wheel drive) [uncountable, countable]
 
a system in which power is applied to all four wheels of a vehicle, making it easier to control; a vehicle with this system
a car with four-wheel driveWe rented a four-wheel drive to get around the island. see also four-by-four