The term 'vehicle with sliding doors' can be summarized as a VAN, which is a 3-letter word. A VAN is a type of motor vehicle used for transporting goods or people. It is typically characterized by its boxy shape and large size, and often has sliding doors on either side. Vans are commonly used by businesses for commercial purposes, such as delivering goods or providing services. They are also popular for recreational activities, such as camping trips.