Synonyms of submarine

submarine 1 of 2

adjective

ˈsəb-mə-ˌrēn 

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

• underwater
• aquatic
• submerged
• sunken
• oceanic
• undersea
• deepwater
• deep-sea
• deep
• abyssal
• abysmal

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

• torpedo
• hero
• sub
• hoagie
• grinder
• Italian sandwich
• Cuban sandwich
• po'boy

Example Sentences

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

Amentum brings decades of experience from nuclear submarine programs. — Aamir Khollam, Interesting Engineering, 19 Aug. 2026

Trade tensions with South Korea did not preclude greater collaboration on nuclear submarines. — Kurt M. Campbell, Foreign Affairs, 18 Aug. 2026