Definition

1. Noun:
   • A steering device for watercraft: A flat, hinged piece of wood, metal, or fiberglass mounted vertically at the stern (rear) of a boat or ship. By turning the rudder, the flow of water is deflected, which changes the vessel's direction.
   • A steering device for aircraft: A movable, hinged vertical surface on the tail (empennage) of an airplane. It is used to control the aircraft's yaw (left and right movement around its vertical axis), making horizontal course changes.

Examples of Usage

• Noun:
  • The captain turned the wheel, and the rudder responded, steering the ship away from the rocks.
  • During the flight, the pilot used the rudder pedals to keep the airplane aligned with the runway centerline.
  • A small rudder directs the course of a large ship, just as a small word can have a great effect.

Advanced Usage

• "To be left without a rudder": To be without guidance or direction; to be aimless or adrift (often used figuratively).
  • After the sudden death of the founder, the company was left without a rudder for several months.
• "To take the rudder": To assume control or leadership.
  • When the CEO resigned, the board asked the vice president to take the rudder.

Variants and Related Words

• Rudderless (adj): Lacking direction, guidance, or control.
  • The rudderless organization drifted from one failed project to another.
• Rudderpost (n): The vertical post on which a rudder is mounted and turns.
• Rudderstock (n): Another term for the main shaft or post connecting the rudder to the steering mechanism.

Synonyms

• Helm (n): The wheel or tiller by which a ship's rudder is controlled; can also refer to the steering apparatus itself or a position of leadership.
• Tiller (n): A lever used to turn a boat's rudder, especially on smaller vessels.

Related Phrases

• "At the helm/rudder": In charge or in control.
  • With a new visionary at the rudder, the company's future looks bright.

Noun

1. (nautical) steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel
2. a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes