Which term best describes the main idea of a peice writing?

The term that best describes the main idea of a piece of writing is thesis statement.

Here's why:

* Thesis statement: A thesis statement is a concise summary of the main point or argument of an essay or other piece of writing. It acts as a roadmap for the reader, guiding them through the author's central argument.

* Other terms: While other terms like "topic" or "main point" might be used, they are more general. "Topic" simply refers to the subject matter, while "main point" can be ambiguous.

The thesis statement is specific, focused, and provides the reader with a clear understanding of the author's overall argument.