Definitions:

1. a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese, and often tomato, onion, lettuce, condiments noun
   • I ordered a turkey submarine for lunch.
2. a submersible warship usually armed with torpedoes noun
   • The Navy was outfitted with several new submarines.
3. beneath the surface of the sea adjective
   • We witnessed submarine volcanic activity while deep sea diving.
4. to attack by submersible craft verb
   • The Germans submarined the Allies.
5. to control a submersible craft verb
   • They submarined around the reef.
6. to move forward or under in a sliding motion verb
   • The child was injured when they submarined under the safety belt of the car.

Synonyms:

• pigboat
• sub
• torpedo
• undersea

NearBy Words:

• submariner