The term path can refer to a route or way that someone or something takes, especially when traveling from one place to another. It can also denote an approach, method, or line of reasoning used to achieve a particular goal or end result. In addition, path can have more specific meanings in fields such as medicine (referring to the course of a disease), psychology (describing a person's emotional state or developmental stages) and computer science (denoting a sequence of instructions followed by a program).