What is the definition of a possesive noun?

There's no grammatical term called "possessive noun." The term you're likely looking for is possessive pronoun.

Here's a breakdown:

* Possessive Pronoun: A word that shows ownership or belonging.

* Examples: mine, yours, his, hers, its, ours, theirs

How Possessive Pronouns Work:

* They replace possessive nouns (nouns showing ownership).

* Example: "The red car is mine." (Instead of saying "The red car is my car")

Important Note: While we often use the term "possessive noun" colloquially, it's not a grammatically recognized term. The correct term is "possessive pronoun."