How do you define a class in Python?

Defining a class in Python is accomplished using the 'class' keyword, immediately followed by the name of the class. This is a fundamental aspect of object-oriented programming in Python, allowing developers to create blueprints for creating objects. The syntax typically looks like this:

class MyClass:

class body

This structure not only establishes a new type of object but also allows for the inclusion of attributes and methods specific to that class. By using the 'class' keyword, you’re indicating to the Python interpreter that a new class definition is starting, which is essential for building organized and reusable code.

Other terms like 'define' and 'create' are not part of Python’s vocabulary for class definitions and thus would not work in the language. Additionally, referring to instantiated objects directly does not establish a new class; instead, it's an instance of a class that has already been defined.