Is yours a objective or an nominative pronoun?

The word "yours" is a possessive pronoun. It indicates possession or ownership.

Here's why it's not a nominative or objective pronoun:

* Nominative pronouns are used as the subject of a sentence (e.g., I, you, he, she, it, we, they).

* Objective pronouns are used as the object of a verb or preposition (e.g., me, you, him, her, it, us, them).

Since "yours" indicates possession, it falls into the category of possessive pronouns.