A "section" is a distinct part or division of a larger whole. It can refer to a segment of a document, such as a chapter in a book or a paragraph in an article. Sections help organize information, making it easier for readers to navigate and understand the content. In various contexts, such as in geography, a section can denote a specific area within a larger region, like a section of a city or a section of land. In education, sections may refer to different groups of students within a course, allowing for more focused instruction and interaction.