# Object

A class instance that combines its own state with available behavior.

## What is **Object** in C#?

**Object** — A class instance that combines its own state with available behavior.

```csharp
class Book
{
    string title;

    Book(string title)
    {
        this.title = title;
    }
}
```

Level: Journeyman · [More C# terms at this level](https://www.ask-codey.com/glossary/subjects/c-sharp/journeyman)

Updated: September 27, 2026

## In other subjects

- [Object in Java](https://www.ask-codey.com/glossary/object)
- [Object in JavaScript](https://www.ask-codey.com/glossary/object-javascript-2)
- [Object in OOP](https://www.ask-codey.com/glossary/object-oop)

Source: https://www.ask-codey.com/glossary/object-c-sharp