Words can have no single fixed meaning. Like wayward electrons, they can spin away from their initial orbit and enter a wider magnetic field. No one owns them or has a proprietary right to dictate how they will be used.
It's really difficult for me. Language, I am sorry that I haven't. I think I just always expected that you learn a word in place of a word and when I discovered how difficult the grammar was and learning that was very discouraging for me.