Okay so quick question. If someone tells you "Your fly is down?" do you go into an existential crisis, because you don't know if they mean the act of moving through the air, the front flap of a man's trousers, or a small winged insect?
No? You don't do that? *Shocked* But the term is.... ambiguous! How do you keep track? How do you know?
You just pick up the context being used and move on? What madness! It's as if understanding what people are saying when the use a term in a different way in an honest way is something we all do a thousand times a day in normal conversation.
Philosophy gets called on its word salad, so it pretends it can't follow anything said to it that's not in machine code.