A word that describes a noun or pronoun is called an __________________.

The term used to describe a word that modifies or provides information about a noun or pronoun is "adjective." Adjectives are essential components of language that enhance our descriptions by detailing qualities, quantities, or characteristics of a noun or pronoun. For instance, in the phrase "a beautiful sunset," the word "beautiful" serves as an adjective that describes the noun "sunset."

In contrast, other types of words mentioned in the options serve different functions. Adverbs modify verbs, adjectives, or other adverbs by providing additional details about how, when, where, or to what extent an action is performed. Interjections are words used to express strong emotion or surprise and are usually standalone. Nouns refer to people, places, things, or ideas and do not provide descriptive information about other nouns or pronouns. Therefore, recognizing the role of an adjective is key to understanding its function in a sentence.