The term corpus refers to a collection or body of something. In linguistics, it specifically refers to a large and structured set of text data that is used for analysis, research, or teaching purposes. This can include books, articles, websites, or any other written material in a particular language or on a specific topic. The corpus serves as a representative sample of the language or subject matter being studied, providing insights into its structure and usage patterns. In computer science, "corpus" may also refer to a large collection of data used for training machine learning algorithms or developing natural language processing systems.