The term 'Shin Neighbor' is a phrase used to describe the two bones that are closest to the shin bone, which are the KNEE and the ANKLE. The KNEE is a four-letter word and the ANKLE is a five-letter word. Together, they form the phrase 'Shin Neighbor'. The KNEE is the largest joint in the body and is located between the thigh and the lower leg. The ANKLE is the joint between the foot and the leg and is responsible for supporting the body's weight.