A glossary is a list of terms and their definitions, usually found at the end of a book or in a separate section of a website or other publication. It is a reference tool that provides explanations of technical, specialized, or unfamiliar words and phrases that are used in a particular field or subject area. A glossary is often used to help readers understand complex or technical material, and it can be a useful resource for finding definitions of terms that are used in a specific context. Glossaries may be organized alphabetically or by subject matter, and they may include pronunciation guides, examples of usage, or cross-references to other terms.