Please explain to me what the word "know" means. We could debate about it for hours on end. Same with tons of other words. What exactly is "spicy"? Is there suc

Please explain to me what the word "know" means. We could debate about it for hours on end. Same with tons of other words. What exactly is "spicy"? Is there such a flavor as "savory"? How far is "close"? And your telling me it's not ambiguous? The fact is, while a defining feature might hold for a certain amount of time, a person's idea of "closeness" or "spicyness" or millions of other things will gradually change over time. Albeit alittle. Of course, I said all that to counter your rocket example, as it's not particularly answering the question about language. With regards to language: As I said to other guy, can modern Greeks read ancient Greek? No. Culture degrades language. Gradually, words will mean something else. Consider the word "cool". How many people these days actually associate it with temperature first? Or "ass". How many people think "donkey"? Those are simple examples. We could go back to older English, but I think my point has been demonstrated. Admittedly, I keep shortening my responses before posting, so sometimes I don't explain some logic that seems obvious to me. Apologies.