Stages refer to distinct phases or steps in a process, often used to describe development or progression. Each stage typically has specific characteristics and goals, allowing for systematic evaluation and understanding. For example, in human development, stages can include infancy, childhood, adolescence, and adulthood, each marked by unique physical and emotional changes. In various fields, such as project management or theater, stages help organize tasks or performances. In project management, stages might include planning, execution, and closure, while in theater, stages refer to the physical platform where performances occur. Understanding stages aids in tracking progress and ensuring successful outcomes.