If you're in the Navy, a submarine is a military ship that goes under the water. If you're hungry, it's a type of sandwich.

This word mainly refers to a vessel that travels underwater and is armed with torpedoes — also known as a U-boat. But you can submarine someone by attacking them with a submarine or bringing them down with a blow to the legs. A disappointment can submarine — or sink — your hopes and dreams. In the kitchen, a submarine is what you call a long, crusty sandwich filled with meats and cheese — also known as a sub, grinder, hero, or hoagie.

Definitions of submarine

n a submersible warship usually armed with torpedoes

U-boat, pigboat, sub
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attack submarine
a military submarine designed and armed to attack enemy shipping
auxiliary research submarine
a submarine for research purposes
fleet ballistic missile submarine
a submarine carrying ballistic missiles
nautilus, nuclear submarine, nuclear-powered submarine
a submarine that is propelled by nuclear power
Type of:
submersible, submersible warship
a warship designed to operate under water

n a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

Cuban sandwich, Italian sandwich, bomber, grinder, hero, hero sandwich, hoagie, hoagy, poor boy, sub, submarine sandwich, torpedo, wedge, zep
Type of:
two (or more) slices of bread with a filling between them

adj beneath the surface of the sea

beneath the surface

v attack by submarine

“The Germans submarined the Allies”
Type of:
assail, attack
launch an attack or assault on; begin hostilities or start warfare with

v control a submarine

Type of:
control, operate
handle and cause to function

v move forward or under in a sliding motion

“The child was injured when he submarined under the safety belt of the car”
Type of:
skid, slew, slide, slip, slue
move obliquely or sideways, usually in an uncontrolled manner

v bring down with a blow to the legs

Type of:
cut down, down, knock down, pull down, push down
cause to come or go down

v throw with an underhand motion

Type of:
flip, pitch, sky, toss
throw or toss with a light motion

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