SUB (subbed, subbing)
Dictionary entry overview: What does sub mean?
• SUB (noun)
The noun SUB has 2 senses:
1. 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. a submersible warship usually armed with torpedoes
Familiarity information: SUB used as a noun is rare.
• SUB (verb)
The verb SUB has 1 sense:
1. be a substitute
Familiarity information: SUB used as a verb is very rare.