The term 'alternative route' can be summarized as a DIVERSION, which is a nine-letter word. A DIVERSION is a different path or direction that one takes instead of the original route. It is often used to avoid obstacles or to reach a destination more quickly. Diversions are commonly used in transportation, such as when a road is blocked or closed, or when a driver wants to take a more scenic route. Diversions can also be used in other areas, such as when someone wants to take a different approach to a problem or situation.