What part of speech describes the role of "sheriff" in the sentence "The sheriff drove the robbers out of town"?

In the sentence "The sheriff drove the robbers out of town," the word "sheriff" functions as a noun. Nouns are words that name people, places, things, or concepts, and in this case, "sheriff" refers to a specific person who holds a position of authority within law enforcement.

By analyzing the context, it is clear that "sheriff" is the subject of the sentence, performing the action of driving the robbers out of town. In contrast, verbs denote actions or states, adjectives describe or modify nouns, and pronouns replace nouns, none of which apply here. Therefore, identifying "sheriff" as a noun aligns with its role and purpose in the sentence.