Definitions of scooter:

• noun:   child's two-wheeled vehicle operated by foot
• noun:   large black diving duck of northern parts of the northern hemisphere
• noun:   a wheeled vehicle with small wheels and a low-powered gasoline engine geared to the rear wheel
• noun:   a sailing vessel with runners and a cross-shaped frame; suitable for traveling over ice
• noun:   a motorboat resembling a motor scooter