It's the difference between Tesla's capital A "Autopilot" product and the english word lower case a "autopilot." The language doesn't define Autopilot, but it does define autopilot, like it doesn't define Monero. If I had a product that I called Meat and it wasn't meat, I don't get to say "well the word 'meat' originally just meant solid food," when my customers complain I misled them.