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

By dispersing weapons across submarines, aircraft, land forces, unmanned systems, and allied bases, the United States could create multiple threats that China would have to account for simultaneously. — Kaif Shaikh, Interesting Engineering, 18 Sep. 2026

Dubbed the ‘American Turtle’ for its appearance, the submarine made three attempts to blow up British ships without success, but is considered the forerunner of modern submarines. — Staff Report, Hartford Courant, 16 Sep. 2026