Does terminal mean final?

Yes, in many contexts, "terminal" does mean final, concluding, or representing an absolute end point from which there is no further progression. This is most prominently seen in medical terminology, where a terminal illness indicates an advanced stage of disease that cannot be cured and will inevitably result in a final death outcome. Similarly, in project management, workflow automation, and computer science, reaching a terminal status means a process has hit a definitive conclusion (such as completed, failed, or cancelled) and cannot undergo any further state changes. However, the word can also refer to a beginning or connecting interface—such as a transit terminal where journeys start or an electrical terminal where circuits hook up—because it marks the physical boundary or extremity of that system.