The term 'HARD AREA' can be solved by the word 'CALLUS', which is a six-letter word. A CALLUS is an area of thickened skin that forms as a response to repeated friction, pressure, or other irritation. Calluses are most commonly found on the hands and feet, but can form on any part of the body that is subject to repeated contact. They are usually painless and can help protect the skin from further damage.