Which register is characterized by the use of formal language and structure in communication?

The register characterized by the use of formal language and structure in communication is indeed formal. This register is typically used in professional, academic, or serious contexts where clarity, precision, and respect are paramount. In formal communication, there is often a standardization of grammar, vocabulary, and tone, which helps to convey a sense of professionalism and authority.

In contrast, the other registers capture different styles and purposes of communication. The frozen register is more fixed and often seen in ceremonial or scripted contexts, such as legal documents or religious texts, but it lacks the flexibility of formal communication. The casual register is characterized by informal language and may include slang, making it suitable for relaxed social interactions. Intimate register typically involves personal and close relationships, featuring private language that may not be understandable to outsiders. Thus, while they all serve distinct roles in communication, formal is the one that stands out for its adherence to a structured and serious outline.