Formal language is a structured way of communicating that follows specific rules and conventions. It is often used in professional, academic, or official settings where clarity and precision are essential. For example, when writing a research paper, using formal language helps convey ideas clearly and avoids misunderstandings. In contrast to informal language, which may include slang or casual expressions, formal language emphasizes proper grammar and vocabulary. This type of communication is common in business letters, legal documents, and academic essays, ensuring that the message is taken seriously and understood by a wide audience.