submarine

Meanings

1. 1
   adj

   beneath the surface of the sea

   We witnessed submarine volcanic activity while deep sea diving.

2. 2
   noun

   a submersible warship usually armed with torpedoes

   The Navy was outfitted with several new submarines.

3. 3
   noun

   a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese, and often tomato, onion, lettuce, condiments

   I ordered a turkey submarine for lunch.

4. 4
   verb

   to attack by submersible craft

   The Germans submarined the Allies.

5. 5
   verb

   to control a submersible craft

   They submarined around the reef.

6. 6
   verb

   to move forward or under in a sliding motion

   The child was injured when they submarined under the safety belt of the car.

7. 7
   adj

   Being, relating to, or made for use underwater, especially beneath the sea.

   Near-synonym: submerged (synonymous in "being underwater" sense)

8. 8
   adj

   Hidden or undisclosed.

   a submarine patent

Etymology

From sub- + marine.