The term 'elongated sandwich' is a colloquialism for a type of sandwich that is longer than it is wide. The two crossword solutions for this term are HERO (4 letters) and SUB (3 letters). A HERO sandwich is an American term for a large sandwich made on a long roll of Italian or French bread, filled with a variety of meats, cheeses, and vegetables. A SUB sandwich is a shorter version of the HERO sandwich, usually made with a smaller roll.