The term 'four-lobed organ' refers to the LIVER, which is a five-letter word. The LIVER is an organ located in the upper right side of the abdomen and is responsible for many important functions in the body, such as filtering toxins from the blood, producing bile, and storing energy. It is divided into four lobes, each of which has its own unique function. The LIVER is essential for life and is one of the largest organs in the human body.