Final answer:
Formal diction is used in serious contexts, such as political, business, and academic settings, marked by abstract, multisyllabic words, and the absence of slang or contractions, aimed at maintaining professionalism and clarity.
Step-by-step explanation:
The level of diction that is dignified and serious, and used for important political, business, and academic occasions, is characterized by formal diction. This style of language involves using abstract words, multisyllabic words, and avoids the use of slang or contractions to maintain a tone of formality and professionalism.
In formal diction, specific terms or jargon are chosen to communicate complex ideas clearly and efficiently, and the language is enunciated clearly. The use of formal diction demonstrates a mastery of language that is suitable for engaging with audiences in professional settings. As Aristotle suggested, the mixture of proper words along with metaphorical or rare words can elevate the style above the commonplace, combining perspicuity with distinction.