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rudder

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noun rud·der \ˈrə-dər\

Simple Definition of rudder

  • : a flat, movable piece usually of wood or metal that is attached to a ship, boat, airplane, etc., and is used in steering

Source: Merriam-Webster's Learner's Dictionary

Full Definition of rudder

  1. 1 :  an underwater blade that is positioned at the stern of a boat or ship and controlled by its helm and that when turned causes the vessel's head to turn in the same direction

  2. 2 :  a movable auxiliary airfoil on an airplane usually attached at the rear end that serves to control direction of flight in the horizontal plane — see airplane illustration

  3. 3 :  a guiding force or strategy

rudderless play \-ləs\ adjective

Origin of rudder

Middle English rother, from Old English rōther paddle; akin to Old English rōwan to row


First Known Use: 14th century

Rhymes with rudder


RUDDER Defined for Kids

rudder

play
noun rud·der \ˈrə-dər\

Definition of rudder for Students

  1. :  a movable flat piece attached at the rear of a ship or aircraft for steering





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