The term ALTERNATIVES SUBWAY can be broken down into two crossword solutions: METRO (5 letters) and STILE (5 letters). METRO is a term used to describe an underground railway system, usually found in large cities. It is often referred to as a subway or underground. STILE is a term used to describe a set of steps or ladder used to climb over a fence or wall. It is also used to refer to a type of gate or barrier. Both terms are used to describe alternative forms of transportation to the traditional subway system.