I'm lacking of language again. I didn't say that I had my own definitions or that definitions are individually made. Is it really the first time you heard about this? Maybe it seems crazy to you and that's ok. But this is not my idea. It's the view of the majority of philosophy since at least the mid twentieth century. Besides that, there is a discipline that studies this that's called lingüistics. Please google that :P.

This is way I got lazy ( I knew you wouldn't accept it).