sub › Synonyms

Synonyms for sub

Grouped by meaning, so you pick the word that fits what you mean. See the full definition of sub.

noun · 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
bombergrinderherohero sandwichhoagiehoagyCuban sandwichItalian sandwichpoor boysubmarinesubmarine sandwichtorpedo
noun · a submersible warship usually armed with torpedoes
submarinepigboat
verb · be a substitute

“The young teacher had to substitute for the sick colleague”

substitutestand infill in