Definitions

1. noun

A flat piece of wood or other material that steers a ship or boat by being turned to left or right by the helmsman.

“The captain adjusted the rudder to change course in the storm.”

2. verb

To control or direct (a ship or boat) by turning the rudder.

“The sailor ruddered the boat to the left to avoid the rocks.”

3. noun

A control that steers an aircraft or spacecraft.

“The pilot adjusted the rudder to compensate for the strong wind.”