Four-way is a term used to describe something that is divided or split into four different parts or directions. There are multiple synonyms available for the word four-way, such as quadruple, crossroads, intersection, and fork in the road. Each of these words is used in various contexts to describe different situations, such as quadruple often used in mathematics and science when referring to something that has four times as much as another, while crossroads and intersection both refer to places where roads cross each other. Fork in the road, on the other hand, is commonly used to describe a decision in life where one has to choose between two or more paths.