What is the purpose of pronouns in the English language?

The purpose of pronouns in the English language is to replace nouns. This functionality helps avoid repetition and facilitates smoother communication. For example, instead of repeatedly saying "John went to the store. John bought apples," one can say, "John went to the store. He bought apples." Here, "He" is a pronoun that replaces "John," making the sentence less cumbersome and clearer.

Using pronouns simplifies sentences and provides a way to refer to people, things, or ideas without constantly naming them, which can be particularly useful in both spoken and written language. This ability to streamline communication is a fundamental aspect of how language operates, contributing to the effectiveness and efficiency of conversation and text.