- noun the part on your body where the upper and the lower leg join, where your leg bends
- noun the part of a pair of trousers that covers the knee
- A naturally or artificially bent piece of wood, as used for a brace or haunch.
- A sharp, right-angled bend in a pipe. Also called an elbow.
- A convex handrail.
- Anything resembling a human knee, such as a sudden bend in a characteristic curve.