Submarine sandwich

A submarine sandwich, also known as a sub, wedge, hoagie, hero, grinder, or Italian sandwich, is a type of sandwich that consists of a length of bread or roll split lengthwise and filled with a variety of meats, cheeses, vegetables, and condiments.[1] The sandwich has no standardized name,[1] with over a dozen regional variations used across the U.S.[2] Larger submarine sandwiches, particularly those that are longer in length or overstuffed with greater quantities of ingredients than usual, are sometimes called battleship sandwiches or destroyer sandwiches.[3]

The terms submarine and sub are widespread and not assignable to any certain region, though many of the localized terms are clustered in the northeastern United States.