submarine 1 of 2

adjective

ˈsəb-mə-ˌrēn How to pronounce submarine (audio)
Definition of submarinenext
as in underwater
living, lying, or occurring below the surface of the water the submarine fossils that are to be found in coral reefs

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submarine

2 of 2

noun

as in torpedo
a large sandwich on a long split roll always orders a roast beef submarine with the works

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of submarine
Adjective
But a new antenna technology, borrowed from the physics of medical implants, is rethinking how submarine machines talk to each other – and to us. — Omar Kardoudi june 06, New Atlas, 6 June 2026 As a near-term step, the United States, Australia, and the United Kingdom should invite Japan to participate in discrete (non-submarine) elements of the 2021 AUKUS security pact, which will support Australia’s acquisition of nuclear submarines and promote cooperation on other advanced capabilities. — Christopher Johnstone, Foreign Affairs, 12 Jan. 2023
Noun
To date, just three United States Navy warships have been named for Juneau, Alaska, and two of those have now been sunk by Japanese submarines. — Peter Suciu, Forbes.com, 1 July 2026 What funds that were available went to higher priority items like the Dreadnought-class submarines, the SSN-AUKUS program, and the Global Combat Air Programme (GCAP). — David Szondy july 01, New Atlas, 1 July 2026 See All Example Sentences for submarine
Recent Examples of Synonyms for submarine
  1. underwater
  2. torpedo
  3. aquatic
  4. hero
  5. sub
Adjective
  • The technology is an autonomous underwater vehicle (AUV) paired with its own seabed docking station.
    — New Atlas, New Atlas, 5 July 2026
  • Its tendency to rapidly reproduce, forming dense colonies on underwater surfaces, can clog pipes, pumps and critical water infrastructure while disrupting local ecosystems.
    — Reeti Malhotra, Sacbee.com, 4 July 2026
Definition of underwater
Noun
  • The company makes radar and electronic warfare systems, as well as torpedo defense countermeasures.
    — Lim Hui Jie, CNBC, 6 July 2026
  • The submarine will be able to carry a mixed load of up to 18 heavyweight torpedoes and SM39 Exocet missiles.
    — Prabhat Ranjan Mishra, Interesting Engineering, 4 July 2026
Definition of torpedo
Adjective
  • Part of the Splash Jelly Drop collection, Tory Burch’s Mini Romy reworks one of the brand’s signature shapes into a bright aquatic blue that immediately calls to mind swimming pools and cloudless skies.
    — Sanika Achrekar, Glamour, 2 July 2026
  • Research examining toxins and microplastics in aquatic environments has raised concerns about their potential effects on these microscopic organisms and the broader marine ecosystem.
    — Jason Phillips, USA Today, 2 July 2026
Definition of aquatic
Noun
  • Soldier Valley Spirits' objective is to support military heroes and their families, Greenwood said.
    — Teresa Mull, FOXNews.com, 2 July 2026
  • Shakespeare’s haughty Roman war hero, revered on the battlefield yet reviled by hungry plebeians, becomes the flash point in a young democracy tearing itself apart over power and sacrifice.
    — Theater Critic, Los Angeles Times, 1 July 2026
Definition of hero
Noun
  • Belgian boss Rudi Garcia, perhaps looking to make a statement after FIFA’s handling of the Balogun red card incident, unleashed a pair of super subs in the form of Manchester City’s attacking midfielder Jérémy Doku and Napoli striker Romelu Lukaku.
    — Kevin Dotson, CNN Money, 6 July 2026
  • The next day, a team from Chile, utilizing radar and sonar sound-detection equipment, confirmed the presence of Gil, still alive, in the sub-basement.
    — Mery Mogollón, Los Angeles Times, 5 July 2026
Definition of sub

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Cite this Entry

“Submarine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/submarine. Accessed 8 Jul. 2026.

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More from Merriam-Webster on submarine

Nglish: Translation of submarine for Spanish Speakers

Britannica.com: Encyclopedia article about submarine

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