Words · Very common
sub
/sʌb/ · 3 letters · 3 distinct letters
- verb
be a substitute
The young teacher had to substitute for the sick colleague
- 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
- noun
a submersible warship usually armed with torpedoes