Here's a breakdown:
In Programming:
* Classes are blueprints: They define the structure and behavior of objects.
* Objects are instances: They are created from classes.
So, in the context of programming, "classes" are not objects themselves. They are the definitions from which objects are created.
In General Language:
* Classes can be conceptual groups: We might talk about "classes of people" or "classes of objects." In this sense, "classes" are not physical objects but abstract groupings.
To be more specific, can you tell me what context you're asking about? Knowing the context will help me give you a more accurate answer.