Pronouns are words that replace nouns, such as:
* He, she, it, they, we, you, I (personal pronouns)
* This, that, these, those (demonstrative pronouns)
* Mine, yours, his, hers, its, ours, theirs (possessive pronouns)
* Someone, anyone, nobody, everything (indefinite pronouns)
Adjectives, on the other hand, describe nouns. They tell us more about the noun, such as its size, color, or shape.
Here are some examples:
Pronoun replacing a noun:
* The dog is barking. --> It is barking.
* My friend is coming over. --> She is coming over.
Adjective describing a noun:
* The big, red dog is barking.
* My happy friend is coming over.
In short:
* Pronouns replace nouns.
* Adjectives describe nouns.