Which word means to expand or add more detail to a concept or idea?

The term "develop" refers to the process of expanding, elaborating on, or adding more detail to a concept or idea. When an idea is developed, it is often fleshed out with additional information, examples, or analysis that enhances understanding and depth. This action typically involves taking a basic idea and building upon it to create a more comprehensive or nuanced perspective.

In contrast, "refine" implies making improvements or adjustments to something that already exists, focusing on clarity or quality, rather than simply expanding it. "Reveal" suggests the act of uncovering or disclosing something that was previously hidden, while "convey" refers to the act of communicating or expressing an idea without necessarily implying that the idea is being elaborated upon. Therefore, "develop" best captures the notion of broadening and deepening a concept.