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
Deep Blue Sea—Learn about our oceans while on submarine Sea Lab Alpha with underwater explorers Marina and Reef. — Anna Halkidis, Parents, 6 Dec. 2024 Known as an innovator in the grocery business, Violante enhanced the experience at Holiday Market with an in-store bakery, freshly made submarine sandwiches, and beers from around the world, according to his family obituary. — Susan Selasky, Detroit Free Press, 16 Oct. 2024
Noun
The project encompasses building a fiber optic cable network spanning 4,500 kilometers (2,800 miles) across Syria to a submarine cable landing station at Tartus on the Mediterranean, with connections to Jordan, Lebanon, and Turkey. — Melissa Hancock, Fortune, 12 Aug. 2026 Its findings could also guide the design of submarines, polar bases, oil rigs, refugee camps, and other isolated environments. — Atharva Gosavi, Interesting Engineering, 12 Aug. 2026 See All Example Sentences for submarine
Recent Examples of Synonyms for submarine
  1. underwater
  2. torpedo
  3. aquatic
  4. hero
  5. sub
Adjective
  • However, Microsoft ended the project in 2024 and chose not to build more underwater data centers.
    — Nir Kshetri, The Conversation, 17 Aug. 2026
  • The vessel supports the testing and deployment of robotic and autonomous, crewed and uncrewed underwater systems, and undersea surveillance systems, according to a press release.
    — Prabhat Ranjan Mishra, Interesting Engineering, 16 Aug. 2026
Definition of underwater
Noun
  • The lifeguard was using a rescue torpedo in the water when a white shark grabbed the rescue buoy and pulled him underwater.
    — Rick Sobey, Boston Herald, 10 Aug. 2026
  • Power systems for the MK48 torpedo The first award exercises the fourth option year of an existing contract supporting the MK48 Mod 7 Heavyweight Torpedo program.
    — Atharva Gosavi, Interesting Engineering, 9 Aug. 2026
Definition of torpedo
Adjective
  • Ten-year-old Balor and 7-year-old Zephyr, both males, were flown on a cargo plane from Marineland aquatic park in Ontario as part of a multi-institution rescue effort.
    — AJ Willingham, AJC.com, 17 Aug. 2026
  • The bill included exceptions for genetic traits intended to benefit an animal’s health or enhance its interaction with humans, including hypoallergenic traits, as well as certain aquatic animals.
    — John Woolfolk, Mercury News, 14 Aug. 2026
Definition of aquatic
Noun
  • Kateri’s section is quieter and methodical like its central hero, who slips undetected among this community to sow her chaos and reap her revenge.
    — Katie Walsh, Boston Herald, 13 Aug. 2026
  • The newest hero, The Hood, a Vanguard, joined on August 7, adding dark magic and street hustle to the free-to-play title available on PS5, Xbox Series X/S, and PC.
    — Brian Mazique, Forbes.com, 13 Aug. 2026
Definition of hero
Noun
  • The shop, both a drug store and old-time fountain shop, offers fountain sodas as well as subs and sandwiches.
    — Stephanie Vermillion, Travel + Leisure, 18 Aug. 2026
  • In addition, such subs can be used for boring routine patrols or be sent into hostile environments without risking sailors or much more valuable platforms.
    — David Szondy August 17, New Atlas, 17 Aug. 2026
Definition of sub

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submachine guns
submarine
submarines
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Cite this Entry

“Submarine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/submarine. Accessed 19 Aug. 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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