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

Synonyms & Similar Words

Relevance

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

Synonyms & Similar Words

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
One of his first major tests in office was the sinking of the Kursk, a nuclear submarine that went down with 118 sailors on board. — Nathan Hodge, CNN Money, 23 Aug. 2026 When completed, the Waterford campus will complement submarine production efforts by providing additional space for administrative staff, software developers and new trainees. — P.r. Lockhart, Hartford Courant, 23 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
  • This marks a big step forward for the underwater rail project.
    — Sujita Sinha, Interesting Engineering, 31 Aug. 2026
  • For a truly unforgettable endeavor, dive into a deep appreciation of the wonders of the underwater world on the Ocean Pearl, the resort’s mini submarine.
    — Condé Nast Traveler, Condé Nast Traveler, 30 Aug. 2026
Definition of underwater
Noun
  • The Waco, Texas, native died in 1943 during a Japanese torpedo attack in the Pacific.
    — Michael Loria, USA Today, 21 Aug. 2026
  • The third season ended with Kate discovering the plot orchestrated by Hal and President Grace (Janney) to steal a dangerous Russian nuclear torpedo — a plot she is now implicated in.
    — Mya Copeland, Variety, 17 Aug. 2026
Definition of torpedo
Adjective
  • Once this aquatic animal was able to live out of water, its 18 appendages were lost over generations.
    — New Atlas, New Atlas, 30 Aug. 2026
  • Milander Aquatic Center has become a hub for aquatic programs in the area, drawing swimmers, families, schools and athletes from Miami Springs, Hialeah Gardens and other parts of Miami-Dade County.
    — Verónica Egui Brito, Miami Herald, 22 Aug. 2026
Definition of aquatic
Noun
  • Horrific details are emerging and a young girl is being hailed as a hero after authorities said a shooting and fire left multiple people dead at a family's home in Montana.
    — CBS News, CBS News, 26 Aug. 2026
  • And that all starts with Hawks themselves, a wonderfully charismatic hero who’s nearly impossible to dislike.
    — Hayes Madsen, Space.com, 26 Aug. 2026
Definition of hero
Noun
  • Pick a region, approve a sub-processor, spin up a tenancy because the security team is on holiday.
    — Maman Ibrahim, Forbes.com, 1 Sep. 2026
  • The sub-indexes on raw materials inventory and employment, however, were in contractionary territory below the 50-mark threshold.
    — Anniek Bao, CNBC, 31 Aug. 2026
Definition of sub

Browse Nearby Words

submachine guns
submarine
submarines
See all Nearby Words

Cite this Entry

“Submarine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/submarine. Accessed 2 Sep. 2026.

Copy Citation

More from Merriam-Webster on submarine

Britannica.com: Encyclopedia article about submarine

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of dissonant

See Definitions and Examples »

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All