The meaning of RUDDER is 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.

RUDDER definition: a vertical blade at the stern of a vessel that can be turned horizontally to change the vessel's direction when in motion. See examples of rudder used in a sentence.

In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or afterend. Often rudders are shaped to minimize hydrodynamic or aerodynamic drag.

/ ˈrʌd·ər / Add to word list a flat blade at the back of a boat or aircraft that is moved from side to side in order to control the direction of travel (Definition of rudder from the Cambridge Academic Content …

Definition of rudder noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define rudder. rudder synonyms, rudder pronunciation, rudder translation, English dictionary definition of rudder. n. 1. a. A vertically hinged plate of metal, fiberglass, or wood mounted at the stern of a …

An aeroplane's rudder is a vertical piece of metal at the back which is used to make the plane turn to the right or to the left. Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins …

There are 13 meanings listed in OED's entry for the noun rudder, three of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

rudder, part of the steering apparatus of a boat or ship that is fastened outside the hull, usually at the stern. The most common form consists of a nearly flat, smooth surface of wood or metal hinged at its …

Feb 2, 2026 · The rudder is controlled by means of a wheel, tiller or other apparatus (modern vessels can be controlled even with a joystick or an autopilot). (aeronautics) A control surface on the vertical …