A sandwich base is the foundation of a sandwich, and can be made from a variety of ingredients. The most common sandwich bases are PITA (4 letters), ROLL (4 letters), and SALAMI (6 letters). PITA is a type of flatbread made from wheat flour, water, and yeast, and is often used as a wrap for sandwiches. ROLL is a type of bread ROLL, usually made from wheat flour, water, and yeast, and is often used as a base for sandwiches. SALAMI is a type of cured sausage, usually made from pork, beef, or other meats, and is often used as a topping for sandwiches.