2. (n.) The joint, or region of the joint, between the thigh and leg.
3. (n.) In the horse and allied animals, the carpal joint, corresponding to the wrist in man.
4. (n.) A piece of timber or metal formed with an angle somewhat in the shape of the human knee when bent.
5. (n.) A bending of the knee, as in respect or courtesy.
6. (v. t.) To supplicate by kneeling.