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

a submersible warship usually armed with torpedoes

sub - verb

• be a substitute

sub - thesaurus

bomber   grinder   hero   hoagie   hoagy   pigboat   submarine   substitute   torpedo   wedge   zep