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Synonyms

submarine

American  
[suhb-muh-reen, suhb-muh-reen, suhb-muh-reen] / ˌsʌb məˈrin, ˈsʌb məˌrin, ˌsʌb məˈrin /

noun

  1. a vessel that can be submerged and navigated under water, usually built for warfare and armed with torpedoes or guided missiles.

  2. something situated or living under the surface of the sea, as a plant or animal.

  3. Chiefly Northeastern and North Midland U.S. a hero sandwich.


adjective

  1. situated, occurring, operating, or living under the surface of the sea.

    a submarine mountain.

  2. of, relating to, or carried on by a submarine or submarines.

    submarine warfare.

verb (used without object)

submarined, submarining
  1. to participate in the operating of a submarine.

  2. to move or slide under something.

  3. Slang.

    1. to be thrown under the steering wheel of the vehicle one is driving during a frontal crash.

    2. to be thrown out of one's seat belt in such a crash.

verb (used with object)

submarined, submarining
  1. to attack or sink by submarine.

submarine British  
/ ˈsʌbməˌriːn, ˌsʌbməˈriːn /

noun

  1. Often shortened to: sub.  a vessel, esp one designed for warfare, capable of operating for protracted periods below the surface of the sea

  2. (modifier)

    1. of or relating to a submarine

      a submarine captain

    2. occurring or situated below the surface of the sea

      a submarine cable

"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

  • antisubmarine adjective

Etymology

Origin of submarine

1640–50; 1895–1900 submarine for def. 1; sub- + marine

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.

It is this zone Russia's Northern Fleet missile-launching submarines based on the Kola Peninsula must cross to disappear into the deep waters of the Atlantic.

From Barron's

And the bigger the hole got, the faster the boat sank, as if it were tired of being a boat and wanted to try being a submarine.

From Literature

Simon explores a blood ocean in a cramped submarine, called the Iron Lung, to search for missing stars and planets.

From BBC

New Start required the Navy to convert submarine missile tubes, making them inoperable.

From The Wall Street Journal

But the southeastern port city is now being pitched as a landing point for submarine internet cables linking India to Singapore.

From Barron's