I'm pretty sure that the word "owie" and the word "knee" mean the same thing. I pretty much always have owies on my knees and like to show them to Mommy when she gets me up from my nap. I just got up from my nap and was pointing to Mommy's knees telling her that they were "owies" even though they seem 100% okay right now. When I fall down and get owies on my knees I usually don't even cry and if I do, it's only for about 10 seconds. Mom says I'm a pretty tough little guy.