空空 - Empty is as empty is....

Hm....where should I start....

Am currently taking a class on The Heart Sutra, and learning about emptiness.
And the Venerable wanted us to discuss and explain 空... (of course to the best of our ability after his teaching)

So just to share.
The way we use the word 空, does not do the word justice.
Because whenever we use 空, we use it in context. And that is not the real 空.

When you are the first in class, into the classroom, is the room 空?
Yes, the room is 空 of other classmates. But the room is not 空 of other physical objects, like the tables and chairs. So is the room 空?

空 is typically used in reference to an object, which in a sense, does not make it real 空. (Am I losing you?)

But there is a 空空 (which I have yet to learn about)....