Overview of noun sub

The noun sub has 2 senses

• 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)


• submarine, pigboat, sub, U-boat -- (a submersible warship usually armed with torpedoes)

Overview of verb sub

The verb sub has 1 sense

• substitute, sub, stand in, fill in -- (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")