The term 'SUB BASE' can be solved by the crossword solutions SALAMI (6 letters) and DELI (4 letters). SALAMI is a type of cured sausage made from beef, pork, or a combination of the two. It is usually seasoned with garlic, salt, and spices. DELI is short for delicatessen, which is a store that specializes in prepared foods such as sandwiches, salads, and other cold cuts. Both SALAMI and DELI are commonly used as ingredients in subs, which is why they are the solutions to the term SUB BASE.