Simple Definition:

A personal pronoun is a word that is used instead of a person’s name to refer to that person. [Uncommon word: pronoun – a word that is used instead of a noun.]

Examples:

• Instead of saying "Mary went to the store," you can say "She went to the store." ("she" is a personal pronoun)
• Instead of saying "John is happy," you can say "He is happy." ("he" is a personal pronoun)

Very Simple Definition:

A personal pronoun is a word we use instead of a person’s name.

Examples:

• Instead of saying "Mary went to the store," you can say "She went to the store." ("she" is a personal pronoun)
• Instead of saying "John is happy," you can say "He is happy." ("he" is a personal pronoun)