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torpedo

American  
[tawr-pee-doh] / tɔrˈpi doʊ /

noun

  • torpedoes
    plural
  1. a self-propelled, cigar-shaped missile containing explosives and often equipped with a homing device, launched from a submarine or other warship, for destroying surface vessels or other submarines.

  2. any of various submarine explosive devices for destroying hostile ships, as a mine.

  3. a cartridge of gunpowder, dynamite, or the like, exploded in an oil well to facilitate the extraction of oil from the well.

  4. a detonating device fastened to the top of a rail so as to be exploded by the pressure of a locomotive or car, thus giving an audible signal to members of a train crew.

  5. any of various other explosive devices, as a firework that consists of an explosive wrapped up with gravel in a piece of tissue paper and that detonates when thrown forcibly on the ground or against a hard surface.

  6. Also called torpedo fish.  an electric ray, especially Torpedo nobiliana, of the Atlantic Ocean.

  7. an electric catfish, Malapterurus electricus, inhabiting waters of tropical central Africa and the Nile valley.

  8. Informal. a hero sandwich.

  9. Slang. a gangster hired as a murderer.


verb (used with object)

  • torpedoes,
    present (3rd person singular)
  • torpedoed,
    past participle,  past
  • torpedoing
    present participle
  1. to attack, hit, damage, or destroy with torpedoes.

  2. to explode a torpedo in (an oil well) to facilitate the extraction of oil.

  3. to undermine, ruin, or destroy.

    He torpedoed our plans.

verb (used without object)

  • torpedoes,
    present (3rd person singular)
  • torpedoed,
    past participle,  past
  • torpedoing
    present participle
  1. to attack, damage, or sink a ship with torpedoes.

torpedo British  
/ tɔːˈpiːdəʊ /

noun

  1. a cylindrical self-propelled weapon carrying explosives that is launched from aircraft, ships, or submarines and follows an underwater path to hit its target

  2. obsolete a submarine mine

  3. a firework containing gravel and a percussion cap that explodes when dashed against a hard surface

  4. a detonator placed on a railway line as a danger signal

  5. any of various electric rays of the genus Torpedo

"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

verb

  1. to hit (a ship, etc) with one or a number of torpedoes

  2. to render ineffective; destroy or wreck

    to torpedo the administration's plan

"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

Regionalisms

See hero sandwich.

Other Word Forms

Derived Forms

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Present

Past

Future

Etymology

Origin of torpedo

1510–20; < Latin torpēdō numbness, torpidity, electric ray, equivalent to torpē ( re ) to be stiff ( see torpid 1) + -dō noun suffix

Explanation

A torpedo is a type of missile or bomb fired underwater. To torpedo is to attack with torpedoes. Torpedoes are cigar-shaped projectiles that are used to attack other submarines or boats. The word torpedo comes from the name of a kind of electric ray that numbs you with its sting (torpediniformes). Torpedoes can also be used to attack a target on land. When a submarine fires torpedoes, they're torpedoing the target. Torpedoes explode upon impact, and they're very powerful weapons.

Keep Reading on Vocabulary.com

Vocabulary lists containing torpedo

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A veteran lawmaker who served 12 years in Congress, Bass has attempted to torpedo Raman’s image as a foe of the status quo, pointing out she’s been on the council for nearly six years.

From Los Angeles Times Aug. 20, 2026

What your former co-workers think of you could land you a job or torpedo your chances.

From The Wall Street Journal Jun. 11, 2026

See: Worried that big IPOs will torpedo the stock market?

From MarketWatch Jun. 11, 2026

Consider airlines, which ramp up capacity only to be left holding the luggage when fliers pull back or airfare wars torpedo profits.

From Barron's May 14, 2026

All ten Skyhawks had taken shots at the targets, and the torpedo boats were on fire.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin

The USS Joseph P. Kennedy — a Gearing-class destroyer once equipped with Mark 32 torpedoes, anti-submarine missiles, and nuclear depth charges — has been decorated for Christmas.

From Salon Dec. 24, 2025

The extensive list of procurements ranged from missiles to artillery, torpedoes, armoured vehicles, satellite systems and new uniforms as Berlin races to overhaul the long-neglected Bundeswehr.

From Barron's Dec. 17, 2025

U-boats, Mr. Moorhouse tells us, were also plagued by malfunctioning torpedoes, mechanical failures and, eventually, the incessant—and often successful—depth-charge attacks of Allied warships.

From The Wall Street Journal Nov. 7, 2025

On X, where he has 4.7 million followers, he has channeled his pop-culture savvy and political outrage into a satirical sideshow, firing off punchlines like proton torpedoes.

From Los Angeles Times Jun. 3, 2025

When the zigzagging UFO comes he lays in a salvo of torpedoes only if the asteroid storm isn't too heavy.

From "Black Swan Green" by David Mitchell

Trade talks broke down between Canada and the US last month, with both sides accusing the other of last-minute demands that torpedoed a tentative agreement.

From BBC Sep. 2, 2026

UniQure announced Wednesday that the agency will consider an accelerated approval for its Huntington’s disease gene therapy that had been torpedoed by prior leadership.

From The Wall Street Journal Jun. 19, 2026

Engine problems torpedoed his chances in the Coca-Cola 600, however, and he completed only 271 of 400 laps on the 1.5-mile track.

From Los Angeles Times May 22, 2026

The US Navy had not torpedoed a ship since 1945.

From Barron's Mar. 6, 2026

But on that same day a Norwegian tanker, headed for Willemstad, was torpedoed off Curacao, and fear again swept over the old city.

From "The Cay" by Theodore Taylor

Perhaps the Rogers campaign is correct, and El-Sayed’s connection to the Twitch streamer will prove to be uniquely toxic, torpedoing his chances in the general.

From Slate Aug. 7, 2026

Indian strategic affairs expert Brahma Chellaney wrote on X that the US torpedoing of the Iranian warship in India's "maritime neighbourhood" was "more than a battlefield episode" - calling it a "strategic embarrassment" for Delhi.

From BBC Mar. 6, 2026

The conflict even reached the coast of Sri Lanka, where a US submarine sank an Iranian warship, Washington's first torpedoing of a vessel since World War II.

From Barron's Mar. 5, 2026

“Although we sisters are supposed to be invisible, God has nevertheless given us eyes and ears,” she announces to a roomful of cardinals during an especially brutal torpedoing session.

From Salon Nov. 22, 2024

The first authentically known case of an attack without warning by a German submarine against an allied merchantman was the torpedoing of the French steamship Amiral Ganteaume on October 26, 1914, in the English Channel.

From Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons by Willis J. (Willis John) Abbot

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