What does render do?

Could you please explain what 'render' does? I'm having a hard time grasping its exact function and purpose. I've heard it used in various contexts, like in computer graphics, web development, and even in finance, but I'm still not quite sure how it applies in each scenario. Is it related to processing, displaying, or something else? Could you provide some examples to help me understand better? I'm really curious to know how this term fits into the larger picture of these fields.