rudder

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes (Freq. 1)
• Hypernyms:
airfoil, aerofoil, control surface, surface
• Part Holonyms:
vertical tail
2. (nautical) steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel
• Topics:
seafaring, navigation, sailing
• Hypernyms:
steering system, steering mechanism
• Part Holonyms:
vessel, watercraft
• Part Meronyms:
rudder blade, rudderpost, rudderstock, tiller