Formal diction refers to a style of writing or speaking that is characterized by the use of sophisticated vocabulary, complex sentence structures, and a serious tone. It is often employed in academic, professional, or official contexts, where clarity and precision are essential. This type of diction avoids slang, colloquialisms, and contractions, aiming instead for a polished and respectful communication. In formal diction, the choice of words is deliberate and often reflects a higher level of education or expertise. For example, instead of saying "help," one might use "assist," and instead of "buy," one might say "purchase." This careful selection enhances the credibility of the speaker or writer, making it suitable for situations like academic papers, business reports, or official speeches.