usage cannot capture meaning.

No, I've never heard anyone say they were imagining a concept before now.

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Well it's popular usage.

I don't care how many hits you can get on google.

I"m inquiring as to what you meant by it. You seem to think that imagining the concept dog show you have possession of that concept. I stil don't understand why you think that.

And I'm even more befuddled over your apparent reluctance to explain yourself.

I just wonder what is supposed to be the difference between, imagining a dog show, and imagining the concept, of a dog show. Except, of course, we never say the latter since it is not English. Imagine someone replying to the question, "What are you thinking about now?" by saying, "I am imagining the concept of a dog show". What could he possibly mean?

I just wonder what is supposed to be the difference between, imagining a dog show, and imagining the concept, of a dog show.

Why should not concepts be real objects. They are not imaginary, are they?

Yes, concepts are imaginary. They exist only in human minds.

well, no irony intended, but I don't know what you mean. I don't understand what you are saying. Sorry.

. If a person has a concept of a dog show and they imagine the dog show they've conceived, then they're imagining the concept.

They are not just imagining the dog show, but their concept of the dog show?

In my thread, there is question of in what sense can we give to the notion that meaning of an expression X is given by a rule. That is, how do we figure out the the meaning of X? could it possibly be given by a rule? If it can, then the paradox of ruling following occur.

I've just explained this, in one way, Night Ripper has explained it in another, what is there to not understand? A person can remember a specific dog show of which they have first hand memories, if they do not have access to such memories, then the object of their imagination will be irreducibly conceptual, and this means that it will be a concept that they're imagining.
If you think that this derail is of interest, how about starting a dedicated thread and, on this thread, dealing with Night Ripper's attempt to bring you back to the point.

So, to change the example, if I imagine The Fountain of Youth (which I have never seen) I must be imagining the concept of the Fountain of Youth? I suppose I will have to try to introspect again, and see whether you are right. I just did so. I cannot tell. I seem to be imagining just The Fountain of Youth. Am I wrong? (Ponce de Leon searched for The Fountain of Youth, or so it is said. But was he wrong? Was he really searching for the concept of The Fountain of Youth?).

if I imagine The Fountain of Youth (which I have never seen) I must be imagining the concept of the Fountain of Youth? I suppose I will have to try to introspect again, and see whether you are right. I just did so. I cannot tell. I seem to be imagining just The Fountain of Youth.

I'm with Night Ripper, on this. There are no Euclidean hypercubes but the concept is well defined, so a person imagining such a cube is imagining something that is irreducibly conceptual, they are imagining the concept when they describe their behaviour as imagining the cube.

simply becuause we conceive of an imaginary object doesn't mean that particular conception is imaginary, does it?

I dont understand what you mean. What kind of concept isn't imagined?

The word "imagine" is used in many different ways. Not everything we imagin is imaginary. If I imagine (form a mental image of) what my aunt looks like that doesn't mean that my aunt is an imaginary person!