What is the noun form of word object?

The noun form of "object" is already a noun. It can be used in various ways:

* As a thing: "The object in the box is a beautiful sculpture."

* As a goal or aim: "My object is to learn Spanish."

* As a person or thing that is the focus of action: "The object of his affection is her."

There isn't a specific noun form other than "object" itself.