1. a motorboat resembling a motor scooter • Syn: water scooter, sea scooter • Derivationally related forms: scoot • Hypernyms: motorboat, powerboat 2. child's two-wheeled vehicle operated by foot • Derivationally related forms: scoot • Hypernyms: wheeled vehicle 3. a sailing vessel with runners and a cross-shaped frame; suitable for traveling over ice • Syn: iceboat, ice yacht • Derivationally related forms: scoot • Hypernyms: vessel, watercraft 4. a wheeled vehicle with small wheels and a low-powered gasoline engine geared to the rear wheel • Syn: motor scooter • Derivationally related forms: scoot • Hypernyms: wheeled vehicle 5. large black diving duck of northern parts of the northern hemisphere • Syn: scoter • Hypernyms: sea duck • Hyponyms: common scoter, Melanitta nigra • Member Holonyms: Melanitta, genus Melanitta