The term 'Truck Compartments' refers to the various sections of a truck, such as the cab, bed, and other storage areas. The crossword solution for this term is 'CABS, ' which is a four-letter word that refers to the driver's compartment of a truck. CABS are typically enclosed and provide a comfortable space for the driver to operate the vehicle. They also often contain additional storage space for items such as tools and supplies.