I looked it up, real property is the stuff you own that is not movable; you can’t move a piece of land, it’s just gonna be where it is. It’s also property that is affected by the environment around it in a way that other property isn’t. If your neighbor uses a cheap phone, your phone does not depreciate in value as a result.

The opposite of real property isn’t fake property, it’s personal property. That covers your stuff and also things that aren’t physical but you own anyway, like intellectual property.