noun · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ˈɹʌdəː/
Received-Pronunciation:[ˈɹʌdəː]
General-American:/ˈɹʌdɚ/
General-American:[ˈɹʌ̈dɚ] ~ [ˈɹʌ̈dɹ̩]
US:Recorded audio is listed in the source snapshot.
rhymes with -ʌdə(ɹ)
CMU ARPABET:R AH1 D ER0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
An underwater vane used to steer a vessel. 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).
Definition source: English Wiktionary via Wiktextract
Topics: nautical, transport
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A control surface on the vertical stabilizer of a fixed-wing aircraft or an autogyro. On some craft, the entire vertical stabilizer comprises the rudder. The rudder is controlled by foot-operated control pedals.
Definition source: English Wiktionary via Wiktextract
a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: airfoil, aerofoil, control surface, surface
History
Etymology
Etymology tree Proto-Indo-European *h1reh1- Proto-Indo-European *h1roh1-(ye-)-tider. Proto-Germanic *rōaną Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Germanic *-þrą Proto-Germanic *rōþrą Proto-West Germanic *rōþr Old English rōþor Middle English rother English rudder From Middle English rodder, rother, ruder, from Old English rōþor (“oar, rudder”), from Proto-West Germanic *rōþr, from Proto-Germanic *rōþrą (“oar, rudder”) (compare Dutch and West Frisian roer, German Ruder), from Proto-Germanic *rōaną, from Proto-Indo-European *h1reh1- (“to row”) + Proto-Germanic *-þrą, *-þraz, instrumental suffix. Akin to Old English rōwan (“to row”). More at rōwan, -þor.
Across languages
Translations
118 source translations are retained for this English entry.
Albanian:
timon
— underwater vane used to steer a vessel
Arabic:
دَفَّة
(daffa)
— underwater vane used to steer a vessel
Arabic:
سُكَّان
(sukkān)
— underwater vane used to steer a vessel
Arabic:
دمان
(dmān)
— underwater vane used to steer a vessel
Armenian:
ղեկ
(ġek)
— underwater vane used to steer a vessel
Belarusian:
руль
(rulʹ)
— underwater vane used to steer a vessel
Central Bikol:
ugit
— underwater vane used to steer a vessel
Bulgarian:
рул
(rul)
— underwater vane used to steer a vessel
Bulgarian:
кормило
(kormilo)
— underwater vane used to steer a vessel
Catalan:
timó
— underwater vane used to steer a vessel
Chinese Mandarin:
舵
(duò)
— underwater vane used to steer a vessel
Chinese Mandarin:
船舵
(chuánduò)
— underwater vane used to steer a vessel
Czech:
kormidlo
— underwater vane used to steer a vessel
Danish:
ror
— underwater vane used to steer a vessel
Dutch:
roer
— underwater vane used to steer a vessel
Esperanto:
direktilo
— underwater vane used to steer a vessel
Esperanto:
rudro
— underwater vane used to steer a vessel
Finnish:
peräsin
— underwater vane used to steer a vessel
French:
gouvernail
— underwater vane used to steer a vessel
French:
safran
— underwater vane used to steer a vessel
Friulian:
tamon
— underwater vane used to steer a vessel
Galician:
leme
— underwater vane used to steer a vessel
Galician:
temón
— underwater vane used to steer a vessel
Galician:
peltre
— underwater vane used to steer a vessel
Georgian:
საჭე
(sač̣e)
— underwater vane used to steer a vessel
German:
Ruder
— underwater vane used to steer a vessel
German:
Steuer
— underwater vane used to steer a vessel
German:
Steuerruder
— underwater vane used to steer a vessel
Greek:
πηδάλιο
(pidálio)
— underwater vane used to steer a vessel
Ancient Greek:
πηδάλιον
(pēdálion)
— underwater vane used to steer a vessel
Hindi:
अरित्र
(aritra)
— underwater vane used to steer a vessel
Hindi:
पतवार
(patvār)
— underwater vane used to steer a vessel
Hungarian:
kormánylapát
— underwater vane used to steer a vessel
Indonesian:
daun kemudi
— underwater vane used to steer a vessel
Indonesian:
kemudi sepak
— underwater vane used to steer a vessel
Italian:
timone
— underwater vane used to steer a vessel
Italian:
timone orizzontale
— underwater vane used to steer a vessel
Japanese:
舵
(kaji)
— underwater vane used to steer a vessel
Javanese:
setir
— underwater vane used to steer a vessel
Korean:
키
(ki)
— underwater vane used to steer a vessel
Latin:
gubernāculum
— underwater vane used to steer a vessel
Macedonian:
кормило
(kormilo)
— underwater vane used to steer a vessel
Malay:
rudder
— underwater vane used to steer a vessel
Māori:
urunga
— underwater vane used to steer a vessel
Māori:
urungi
— underwater vane used to steer a vessel
Norwegian Bokmål:
ror
— underwater vane used to steer a vessel
Norwegian Nynorsk:
ror
— underwater vane used to steer a vessel
Persian:
خلاشه
(xalâše)
— underwater vane used to steer a vessel
Persian:
سکان
(sokân)
— underwater vane used to steer a vessel
Plautdietsch:
Scheppstia
— underwater vane used to steer a vessel
Polish:
ster
— underwater vane used to steer a vessel
Portuguese:
leme
— underwater vane used to steer a vessel
Romanian:
cârmă
— underwater vane used to steer a vessel
Russian:
руль
(rulʹ)
— underwater vane used to steer a vessel
Russian:
корми́ло
(kormílo)
— underwater vane used to steer a vessel
Sardinian:
timona
— underwater vane used to steer a vessel
Sardinian:
timone
— underwater vane used to steer a vessel
Sardinian:
timoni
— underwater vane used to steer a vessel
Scottish Gaelic:
stiùir
— underwater vane used to steer a vessel
Serbo-Croatian:
кормило
— underwater vane used to steer a vessel
Serbo-Croatian:
kormilo
— underwater vane used to steer a vessel
Sicilian:
timuni
— underwater vane used to steer a vessel
Slovak:
kormidlo
— underwater vane used to steer a vessel
Slovene:
krmilo
— underwater vane used to steer a vessel
Spanish:
timón
— underwater vane used to steer a vessel
Spanish:
gobernalle
— underwater vane used to steer a vessel
Swahili:
usukani
— underwater vane used to steer a vessel
Swedish:
roder
— underwater vane used to steer a vessel
Thai:
หางเสือ
(hǎang-sʉ̌ʉa)
— underwater vane used to steer a vessel
Thai:
หางเสือเรือ
(hǎang-sʉ̌ʉa-rʉʉa)
— underwater vane used to steer a vessel
Turkish:
dümen
— underwater vane used to steer a vessel
Ottoman Turkish:
دومن
(dümen)
— underwater vane used to steer a vessel
Ukrainian:
руль
(rulʹ)
— underwater vane used to steer a vessel
Ukrainian:
стерно́
(sternó)
— underwater vane used to steer a vessel
Venetan:
timón
— underwater vane used to steer a vessel
Vietnamese:
bánh lái
— underwater vane used to steer a vessel
Welsh:
llyw
— underwater vane used to steer a vessel
Arabic:
سُكَّان
(sukkān)
— control surface of an aircraft
Arabic:
دَفَّة
(daffa)
— control surface of an aircraft
Armenian:
ղեկ
(ġek)
— control surface of an aircraft
Breton:
stalaf
— control surface of an aircraft
Catalan:
timó
— control surface of an aircraft
Chinese Mandarin:
舵
(duò)
— control surface of an aircraft
Chinese Mandarin:
方向舵
(fāngxiàngduò)
— control surface of an aircraft
Czech:
kormidlo
— control surface of an aircraft
Danish:
ror
— control surface of an aircraft
Danish:
haleror
— control surface of an aircraft
Danish:
sideror
— control surface of an aircraft
Dutch:
roer
— control surface of an aircraft
Esperanto:
direktilo
— control surface of an aircraft
Estonian:
pöördetüür
— control surface of an aircraft
Finnish:
peräsin
— control surface of an aircraft
Finnish:
sivuperäsin
— control surface of an aircraft
French:
gouverne
— control surface of an aircraft
Georgian:
საჭე
(sač̣e)
— control surface of an aircraft
German:
Steuerruder
— control surface of an aircraft
German:
Ruder
— control surface of an aircraft
Greek:
πηδάλιο
(pidálio)
— control surface of an aircraft
Indonesian:
kemudi arah
— control surface of an aircraft
Italian:
timone
— control surface of an aircraft
Italian:
timone di coda
— control surface of an aircraft
Italian:
timone di profondità
— control surface of an aircraft
Italian:
timone di direzione
— control surface of an aircraft
Japanese:
舵
(kaji)
— control surface of an aircraft
Japanese:
方向舵
(hōkōda)
— control surface of an aircraft
Korean:
방향타
(banghyangta)
— control surface of an aircraft
Norwegian:
ror
— control surface of an aircraft
Norwegian:
haleror
— control surface of an aircraft
Norwegian:
sideror
— control surface of an aircraft
Polish:
ster kierunku
— control surface of an aircraft
Portuguese:
leme
— control surface of an aircraft
Russian:
руль поворо́та
(rulʹ povoróta)
— control surface of an aircraft
Russian:
руль направле́ния
(rulʹ napravlénija)
— control surface of an aircraft
Spanish:
timón
— control surface of an aircraft
Spanish:
gobernalle
— control surface of an aircraft
Swedish:
roder
— control surface of an aircraft
Thai:
หางเสือเลี้ยว
(hǎang-sʉ̌ʉa-líao)
— control surface of an aircraft