a high-performance four-wheel drive car built on a truck chassis
"The new SUV combines rugged off-road capability from its truck chassis with the speed of a sports car."
Initialism of sport utility vehicle.
"The acronym SUV stands for sport utility vehicle, a type of car known for its versatility and off-road capability."
In plain English: A SUV is a big, boxy car that sits higher off the ground and can carry more people than most regular cars.
"They drove their red SUV to the beach for the weekend trip."