A HYBRID or hatchback is a type of automobile that combines the features of a sedan and a station wagon. It typically has a sloping rear roofline, a large cargo area, and a four-door design. The term 'HYBRID' is used to describe a vehicle that uses two or more power sources, such as gasoline and electricity, while the term 'hatchback' refers to a car with a rear door that opens upward. The answer to the crossword puzzle is 'AUTO, ' which is short for automobile.