There are a few different terms that are used to refer to sections within a chapter. These include: subsections, subtopics, and themes. Subsections are the most common, and they refer to smaller parts of a chapter that are used to break up the text and provide more information on a specific topic. Subtopics are similar to subsections, but they are usually used to refer to specific topics that are mentioned within a subsection. Themes are broader topics that a chapter might focus on, and they can be used to provide an overall structure for a chapter.
