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submarine

submarine

191 4.2
A warship that travels underwater and carries torpedoes
  • noun
  • /ˈsʌbməˌrin/
translation icon : submarino
  • During World War II, the submarine launched a series of torpedoes at enemy ships.
  • nuclear submarine
  • attack submarine
  • submarine warfare

They even really perfected the art of fighting submarines with submarines.

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Examples

  • As early as 1918, German submarine designers had developed plans for a 250-ton submarine.

    Academic text (1999)
  • The crew of the submarine prepared for an underwater mission with their torpedoes ready.

  • As far as the German navy was concerned, the submarine plans developed in Finland proved very useful.

    Academic text (1999)
  • In the important field of submarine warfare, Germany found a safe haven in Finland.

    Academic text (1999)
  • Sir, the Soviets deny any increase in their submarine deployment.

  • Beginning tomorrow, Germany will resume its policy of unrestricted submarine warfare.

  • We have recent intelligence that a Soviet nuclear submarine has docked at Cienfuegos.

    Fiction book (1995)
  • During an exercise in neutral waters, an enemy submarine attacks and sinks Grigorii's boat.

    Academic text (2017)
  • Besides expanding its surface fleet, the PLA Navy has enhanced its submarine force with advanced weapons and sensors.

    Academic text (2013)
  • He served as a navigator on a stealthy submarine designed for covert operations.

Synonyms

sub
vssubmarine
  • Informal
133 5.8

A ship that travels under water, often used by the navy

is the full formal name used in official contexts
U-boat
vssubmarine
17 8.7

A German military submarine from World War I and World War II

is the broader term covering all nations and periods
nuclear submarine
vssubmarine
  • Specialized
9 3.6

A military submarine that runs on nuclear power and can stay underwater for months

is the standard warship term emphasizing design and armament, not power source
nautilus
vssubmarine
4 9.0

A submarine that uses nuclear power to move underwater

is the general warship term rather than a single historical example
attack submarine
vssubmarine
  • Specialized
2 5.5

A military ship that travels under water to find and destroy enemy ships

is the general warship term not focused on attack missions
nuclear-powered submarine
vssubmarine
  • Specialized
1 4.9

A military ship that uses nuclear power to stay underwater for long periods

is the basic warship term focusing on underwater combat role, not propulsion
submersible warship
vssubmarine
  • Specialized
8.4

A military ship that can go underwater to attack or stay hidden

is the general warship term not limited to stealth emphasis
pigboat
vssubmarine
  • Archaic
9.9

A small early submarine used in war and often armed with torpedoes

is the general modern warship term, not limited to early types
fleet ballistic missile submarine
vssubmarine
  • Specialized
9.6

A large submarine that carries nuclear missiles to stop enemies from attacking a country

is the warship class that carries torpedoes rather than strategic missiles
minisubmarine
vssubmarine
  • Specialized
7.4

A very small underwater boat that carries one or two people

is the general naval warship term, not focused on small size or crew

Antonyms

surface ship
  • Specialized
2 4.9

A military ship that moves and fights on the water's surface, not underwater

Idioms

Having no real use

To try to do something that clearly cannot work

Something completely useless because it cannot work where it is used

Compounds

nuclear submarine
  • Specialized
9 3.6

A military submarine that runs on nuclear power and can stay underwater for months

attack submarine
  • Specialized
2 5.5

A military ship that travels under water to find and destroy enemy ships

A long bread roll split open and filled with meats, cheese, and salad vegetables

1 4.9

A military ship that uses nuclear power to stay underwater for long periods

anti-submarine rocket
  • Specialized
7.3

A rocket launched from a ship to attack submarines

A submarine that helps scientists study the sea and collect samples

A large submarine that carries nuclear missiles to stop enemies from attacking a country

6.9

A baseball pitch thrown with a low underhand or sidearm motion that moves in an unusual way

submarine earthquake
  • Specialized
5.4

An earthquake under the sea floor that can cause a tsunami

7.5

A baseball throw made with the arm moving low, close to the ground

submarine torpedo
  • Specialized
5.6

A long underwater weapon fired by a submarine to hit ships

How Big

submarine
191 4.2
attack submarine
  • Specialized
2 5.5
minisubmarine
  • Specialized
7.4

Surface Forms

submarine singular
submarines plural

Morphology

submarine = marine (transparent) = sub + marine

The noun (a vessel operating under the sea) is a straightforward denominal/adjectival formation from 'sub-' + 'marine'; the spatial sense is clear.

Etymology

Submarine comes from sub- 'under' and marine 'sea', and it names a ship that can travel under the ocean. That's why a military submarine hides below the surface to move without being seen.