1. (noun) bomber, grinder, hero, hero sandwich, hoagie, hoagy, Cuban sandwich, Italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep
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
Synonyms: gunman, gunslinger, chock, pigboat, hired gun, molar, paladin, hacek, torpedo, wedge heel, sub, gun, numbfish, hero, shooter, crampfish, mill, wedge shape, submarine sandwich, milling machinery, submarine, zep, hit man, fighter, gun for hire, hitman, grinder, bomber, electric ray, hoagy, triggerman, wedge, cuneus, hero sandwich, champion, hoagie, poor boy
2. (verb) submarine, pigboat, sub, U-boat
a submersible warship usually armed with torpedoes
Synonyms: wedge, zep, poor boy, hoagie, bomber, submarine, grinder, hero sandwich, hoagy, submarine sandwich, hero, sub, pigboat, torpedo
3. (verb) substitute, sub, stand in, fill in
be a substitute
Synonyms: make out, fill in, sub, exchange, shade, fill out, step in, deputise, stand in, complete, replace, deputize, interchange, substitute
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Synonyms and Antonyms of SUB 
