What is the term for making something clearer or improving its clarity?

The term "refine" pertains specifically to the process of making something clearer or enhancing its clarity. In various contexts, refining involves removing impurities or unnecessary elements, which leads to a more polished or straightforward presentation. This can apply to writing, ideas, or even physical objects. The act of refining focuses on improving quality and clarity, thereby making the subject matter more precise and easier to understand.

In contrast, "illustrate" generally refers to providing examples or visual representations to aid comprehension, rather than improving clarity in its essence. "Demonstrate" involves showing or proving something through evidence or examples but does not necessarily focus on clarity itself. Lastly, "emphasize" is about highlighting certain aspects or ideas to draw attention, which might not equate to enhancing clarity but rather to increasing visibility or significance. Thus, "refine" is the most accurate term for the action of improving clarity.