The term 'ORGAN' is a general term used to describe any part of the body that performs a specific function. In this case, the crossword solutions for the term 'liver or lung' refer to two organs in the human body. The liver is a large ORGAN located in the upper right side of the abdomen that is responsible for filtering toxins from the blood, storing energy, and producing bile. The lungs are two spongy organs located in the chest cavity that are responsible for taking in oxygen and expelling carbon dioxide.