The term "two-stage" often refers to a process or system that involves two distinct phases or steps. In various contexts, such as engineering or project management, this approach allows for a more organized and efficient execution. Each stage typically has specific goals and outcomes, making it easier to monitor progress and make adjustments as needed. In the context of two-stage rocket systems, for example, the first stage provides the initial thrust to lift the vehicle off the ground, while the second stage takes over to propel it into orbit. This separation of functions enhances performance and optimizes fuel usage, demonstrating the effectiveness of a two-stage design.