Polycarp, what a relief to see your post! My kitties were orphans, and I bottle fed them , so there’s a close bond. They all respond to their individual names, not to the other’s names. They also definitely know the word NO.
Last week, the big male kitty, 3 years old, was wanting to go out in the middle of the night. I told him NO. He got mighty pissed off, scratching at the door, and then let out a mighty “OWWWWWWWWTTTT”, with a T sound at the end. Kept doing it, too. I then let him out, wondering if I was imagining it, because I’ve had cats all my life, and had never had a cat vocalize like that.
One variable is that, since I raised/nursed these cats from teenies, they really are bonded to me, different than other cats I’ve had. They followed me more closely as kittens, and there was a learning bond when tiny. I would vocalize "Ouuuuuttt?’ , in an extended cat sounding sense when opening the door to let them out.
Never before last week did I hear the fruits of that. It creeped me out a good bit, he sounded so human in vocal. Next time, I’m going to have to tape it. Freaky kitty.