Yours is a pronoun that is used to indicate possession or ownership. It is often used as a possessive pronoun to refer to something that belongs to the person or people being spoken to or written to.
For example, if someone says “Here is your book,” they are indicating that the book belongs to you. In this context, “yours” is acting as a possessive pronoun.
Yours can also be used as a standalone pronoun to substitute for a noun or noun phrase. For instance, if someone says “The blue car is mine, and the red one is yours,” they are using “yours” to refer to the ownership of the red car that belongs to the person being spoken to.
In addition, “yours” can be used as a polite way to end a letter or email. It is used to mean “your (something)” or “your (someone).” For example, “Yours sincerely” is a common closing phrase used in formal letters.
