Nautical. a vertical blade at the stern of a vessel that can be turned horizontally to change the vessel's direction when in motion.
Aeronautics. a movable control surface attached to a vertical stabilizer, located at the rear of an airplane and used, along with the ailerons, to turn the airplane.
any means of or device for governing, directing, or guiding a course, as a leader or principle: His ideas provided a rudder for the new company.
- rud·dered, adjective
- rud·der·less, adjective
- rud·der·like, adjective
- un·rud·dered, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use rudder in a sentence
The thruster and rudder quickly got clogged up with seaweed, forcing the team to stop every few minutes, Bahman says.Inside Alphabet X’s new effort to combat climate change with seagrass | James Temple | November 9, 2022 | MIT Technology Review
The birds achieve top velocity by moving parallel to the ground and using their tails as rudders to stay aerodynamic and make quick turns.Las Vegas bird can’t remember how it ended up in Maine | Margo Milanowski | November 18, 2021 | Popular-Science
A “compensator” that acts like a rudder is positioned just below the frame and connected to the front wheel.Para-Athletes Use Some of the Most Innovative Gear We’ve Seen | agintzler | September 10, 2021 | Outside Online
rudder seems content to play the record keeper and let the philosophers sort out the sigificance.Heartache by the Numbers and OkCupid’s Founder Has Got Yours | Will Doig | October 6, 2014 | THE DAILY BEAST
There's no longer a need to make up a story, because now, as rudder writes, "The numbers are the narrative."Heartache by the Numbers and OkCupid’s Founder Has Got Yours | Will Doig | October 6, 2014 | THE DAILY BEAST
We saw a little bit of blue fire just forward of the vertical rudder, the upper rudder.Did Static Electricity Spark the Hindenburg Explosion? | Justin Green | March 4, 2013 | THE DAILY BEAST
Of course, rudder admits there are more pieces to the puzzle.
If You Got It, Flaunt It Christian rudder, co-founder OkCupid.com, is brutally honest.
With difficulty he induced the scared ryot to take the rudder while he explained the new project.The Red Year | Louis Tracy
A single oar used rather as rudder than paddle guides the tank to the middle of the stream, where it floats to its destination.Journal of a Voyage to Brazil | Maria Graham
Mr Jones, without making a remark of any kind, shipped the rudder; the other four pulled.The Floating Light of the Goodwin Sands | R.M. Ballantyne
The sea seemed to be fining off a bit, so they looked round, and found to their horror that the rudder was gone.The Chequers | James Runciman
On the deck aft, about a couple of feet in advance of the rudder-head, are fitted two brass stanchions.Yachting Vol. 2 | Various.
British Dictionary definitions for rudder
nautical a pivoted vertical vane that projects into the water at the stern of a vessel and can be controlled by a tiller, wheel, or other apparatus to steer the vessel
a vertical control surface attached to the rear of the fin used to steer an aircraft, in conjunction with the ailerons
anything that guides or directs
- rudderless, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012