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1. A submersible warship usually armed with torpedoes
   - pigboat, sub [informal]
    
2. [N. Amer] 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
   - bomber [US, informal], grinder [US, informal], hero [N. Amer], hero sandwich [N. Amer], hoagie [N. Amer], hoagy [N. Amer], Cuban sandwich [N. Amer], Italian sandwich [N. Amer], poor boy [N. Amer], sub [N. Amer, informal], submarine sandwich [N. Amer], torpedo [US], wedge [US, informal], zep [N. Amer]

1. Move forward or under in a sliding motion
   "The child was injured when he submarined under the safety belt of the car"
    
2. (baseball) throw with an underhand motion
    
3. (sport) bring down with a blow to the legs
    
4. Control a submarine
    
5. Attack by submarine
   "The Germans submarined the Allies"

1. Beneath the surface of the sea
   "the precarious life of a submarine diver";
   - undersea, subsea

Derived forms: submarined, submarining, submarines

See also: subsurface

Type of: assail, attack, control, cut down, down [informal], flip, knock down, operate, pitch, pull down, push down, sandwich, sarnie [Brit, informal], skid, sky, slew, slide, slip, slue, submersible, submersible warship, toss

Encyclopedia: Submarine