The term 'Feature Roller COASTER' is a combination of two words, 'DROP' (4 letters) and 'COASTER'. A roller COASTER is an amusement ride consisting of a series of cars that travel along a winding track. The cars are typically pulled up a steep incline before being released to travel freely down the track, often reaching high speeds and experiencing sudden drops and turns. A feature roller COASTER is a type of roller COASTER that has additional features such as loops, corkscrews, and other elements that add to the thrill of the ride.