A pronoun takes the place of a noun in a sentence.
In English there are seven different kinds of pronouns.
1. The personal pronoun takes the place of a specific or named person or thing. Personal pronouns come in three different cases: nominative, objective, and possessive.
2. The reflexive pronoun adds information by pointing back to a noun or another pronoun.
3. The intensive pronoun adds emphasis to a noun or pronoun.
4. The demonstrative pronoun points out a specific person, place, or thing.
5. The relative pronoun begins a subordinate clause and relates the clause to a word in the main clause.
6. The interrogative pronoun is used to ask a question. The personal interrogative pronouns come in the same three cases as the personal pronouns.
7. Indefinite pronouns refer to persons, places, or things without specifying for certain which one.
For more on each type of pronoun, see the glossary entry for that type.