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adj. Going toward the west.

ad. Towards the west; in a westerly direction.

adj. Which is, or will be, moving towards the west.

adj. moving toward the west

"And the couple of cars that are straggling through is heading westbound, which is the way the plane come in. so if you look up far away from where the cars are slowly going -- fastly going, you'll see the runway there."

west   

eastbound    high-occupancy    eight-wheeled    low-priority    thirty-foot-high    outbound    short-haul    long-haul    tipped-over    west-bound