The crossword solution for the term 'LUNGS' is 'LIGHTS'. The lungs are two spongy organs located in the chest cavity that are responsible for taking in oxygen and releasing carbon dioxide. They are part of the respiratory system, which helps to regulate the body's oxygen levels. The lungs are made up of millions of tiny air sacs called alveoli, which allow oxygen to enter the bloodstream and carbon dioxide to be expelled from the body.