- a vessel that can be submerged and navigated under water, usually built for warfare and armed with torpedoes or guided missiles.
- something situated or living under the surface of the sea, as a plant or animal.
- Chiefly Northeastern and North Midland U.S. a hero sandwich.
- situated, occurring, operating, or living under the surface of the sea: a submarine mountain.
- of, relating to, or carried on by a submarine or submarines: submarine warfare.
- to participate in the operating of a submarine.
- to move or slide under something.
- to be thrown under the steering wheel of the vehicle one is driving during a frontal crash.
- to be thrown out of one's seat belt in such a crash.
- to attack or sink by submarine.
Origin of submarine
Regional variation note
Examples from the Web for submarines
The U.S. and Russia are sinking billions into nuclear-capable bombers, missiles, and submarines.US & Russia Re-Arming for a New Cold War
September 30, 2014
AIP submarines are a high priority in the budgets of nations such as Singapore, Korea and Japan.
Submarines are getting quieter, stealthier, and better armed.
The only other option was submarines—an engineering job on steroids.After Soldiering, a Challenging Transition Into Civilian Work
April 8, 2013
Deep-sea submarines have been deployed to assist in the underwater search.Children of Those Missing From Missoni Plane Issue Plea for Information
Barbie Latza Nadeau
January 25, 2013
The submarines, or at least their cargoes, must reach Berlin by some secret passage.City of Endless Night
By the end of March, 1915, a dozen submarines had been caught in nets of this kind.
This was the first time that two submarines had ever fought with each other.
Six of the seven returned to the squadron and were picked up by submarines.
But one of the German submarines was to go to the bottom in retaliation.
- a vessel, esp one designed for warfare, capable of operating for protracted periods below the surface of the seaOften shortened to: sub
- of or relating to a submarinea submarine captain
- occurring or situated below the surface of the seaa submarine cable
Word Origin and History for submarines
"submarine boat," 1899, from submarine (adj.). The short form sub is first recorded 1917. Submarine sandwich (1955) so called from the shape of the roll.