The crossword solution for the term FIGHT FOR AIR is GASP, which is a four-letter word. Gasping is an involuntary reflex that occurs when the body needs more oxygen than it is currently receiving. It is often associated with physical exertion or distress, and can be a sign of respiratory distress. Gasping is also a common response to shock or surprise. The phrase 'Fight for Air' is often used to refer to the struggle to breathe, and is often used in the context of lung diseases such as asthma or COPD.