The term 'topic' can be defined in many ways, and the following crossword solutions provide a variety of interpretations. MATTER (6 letters) is a broad term for any physical substance, such as a gas, liquid, or solid. TEXT-barberry-yellow'>CHAPTER (7 letters) is a division of a book or document, usually with a specific title or THEME. THESIS (6 letters) is an ARGUMENT or opinion supported by evidence, typically presented in an academic paper. GIST (4 letters) is the main point or essence of a TEXT or conversation. SECTION (7 letters) is a distinct part of a larger whole, often divided into subsections. MATERIAL (8 letters) is anything that can be used to create something else, such as fabric, wood, or metal. AFFAIR (6 letters) is an event or activity, especially one of a particular kind. CASE (4 letters) is a particular instance of something, such as a legal dispute. TEXT-barberry-yellow'>HEAD (4 letters) is the top or beginning of something, such as a page or paragraph. TEXT (4 letters) is written or printed words, typically forming a book or article. BUSINESS (8 letters) is an activity or organization involved in the production, distribution, or sale of goods or services. ARGUMENT (8 letters) is a set of statements or facts intended to support a position or opinion. PROPOSITION (11 letters) is a statement or idea that is put forward for consideration or discussion. ISSUE (5 letters) is a problem or MATTER that needs to be addressed. SUBJECT (7 letters) is a person, thing, or idea that is being discussed, described, or dealt with. THEME (5 letters) is an underlying idea or message in a work of literature, art, or music.