Pronoun are words that replace nouns to avoid repetition. Examples include he, she, it, they, this, who, someone, and each. The meaning of PRONOUN is any of a small set of words (such as I, she, he, you, it, we, or they) in a language that are used as substitutes for nouns or noun phrases and whose referents are named or understood in the context. How to use pronoun in a sentence. What is a pronoun ? Pronouns & its types include personal, possessive, reflexive, and relative, used to replace nouns and avoid repetition in sentences. Learn what a pronoun is and how to use it in English grammar. Find out the different types of pronouns, such as personal, demonstrative, interrogative, relative, and more, with examples and explanations.