The term 'lower limb joint' refers to the joints in the lower part of the body, such as the ANKLE. The crossword solution for this term is 'ANKLE', which has five letters. The ANKLE is a joint located between the foot and the leg, and it is responsible for allowing movement in the lower limb. It is made up of three bones: the tibia, fibula, and talus. The ANKLE joint is also surrounded by ligaments and tendons that help to stabilize it.