Synonyms of sub

Noun

1. bomber, grinder, hero, hero sandwich, hoagie, hoagy, Cuban sandwich, Italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep, sandwich

usage: 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

2. submarine, pigboat, sub, U-boat, submersible, submersible warship

usage: a submersible warship usually armed with torpedoes

Verb

1. substitute, sub, stand in, fill in, exchange, change, interchange

usage: be a substitute; "The young teacher had to substitute for the sick colleague"; "The skim milk substitutes for cream--we are on a strict diet"

Definition and meaning of sub (Dictionary)