Which part of speech is used to describe a noun or pronoun?

The part of speech used to describe a noun or pronoun is an adjective. Adjectives provide information about the characteristics, qualities, or states of nouns and pronouns, helping to create a clearer picture in the reader's mind. For example, in the phrase "the tall building," the adjective "tall" describes the noun "building," offering details about its height. This descriptive function is what distinguishes adjectives from other parts of speech, such as verbs, which express actions or states of being; adverbs, which modify verbs, adjectives, or other adverbs; and pronouns, which replace nouns to avoid repetition. Understanding the role of adjectives is crucial for enhancing writing clarity and effectiveness.