Correct. Most people don't know that material objects that we can sense with our sensory organs are actually made up of what physicists call baryonic matter. I specifically used the word baryonic because there are other forms of matter/energy in the universe that we cannot detect with our senses, like dark matter and dark energy, but most people using the word "nothing" in everyday usage are not referring to dark matter or dark energy. When someone says there is nothing in the box, what he means is that he cannot detect any objects made up of baryonic matter within the box, whether he understands what the word baryonic means or not.I don't think I've ever heard someone refer to "nothing" in daily conversation in a way that sugeested they thought there was no baryonic energy within their sensory range, no.Is this really a point of contention - how people use the word nothing in their everyday lives? Most people understand what we mean when we use the word nothing to describe some aspect of our everyday lives, as long as some context is provided. And you can always look it up in a dictionary if you are confused.Perhaps you could explain the source of your definition? I would expect a common definition of nothingness to be more abstract.Feel free to tell us what you think the common definition is. And then contrast it to what I said.Who is "we"? That does not seem like a very common definition of nothingness, in fact.When we use the word nothing in our everyday speech, what we mean is that a particular region of spacetime has no baryonic matter/energy within its boundaries that we can detect with our five senses.
There is nothing in the box - meaning there are no material objects (baryonic matter/energy) in the box (within the region of spacetime defined by the sides of the box) that we can see or sense (detect with our five senses).
The word nothing means something entirely different in the context of certain creationist claims like the Kalaam Cosmological Argument, as I pointed out in my first post. That is what we are trying to discuss here.