What does it mean to communicate or express an idea effectively?

To communicate or express an idea effectively means to successfully convey the intended message to the audience so that it is understood as intended. The term "convey" emphasizes the transfer of meaning and idea from one party to another, highlighting the importance of clarity and appropriateness in expression. When someone conveys an idea well, they not only present the concept but also ensure that the audience grasps the essence of what is being communicated.

The other options relate to aspects of communication but do not fully capture the essence of effectively transmitting an idea. "Demonstrate" implies showing or proving something, often through examples, rather than focusing solely on the expression of an idea. "Develop" refers to the process of expanding or elaborating on thoughts, ideas, or arguments but does not encompass the act of communicating them effectively. "Refine" suggests improving or polishing an idea or message, making it more precise, but does not inherently address the ability to express it to others. Thus, "convey" is the most accurate term for describing the effective communication of ideas.