Nouns

(n)submarine, pigboat, suba submersible warship usually armed with torpedoes
(n)bomber, grinder, hero, hero sandwich, hoagie, hoagy, Cuban sandwich, Italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zepa 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

Verbs

(v)submarinemove forward or under in a sliding motion“The child was injured when he submarined under the safety belt of the car”
(v)submarinethrow with an underhand motion
(v)submarinebring down with a blow to the legs
(v)submarinecontrol a submarine
(v)submarineattack by submarine“The Germans submarined the Allies”

Adjectives

(s)submarine, underseabeneath the surface of the sea