Choking is a medical condition in which the airways become blocked, making it difficult to breathe. The crossword solution 'BREATHLESS' is an apt description of this condition, as it implies that the person affected is unable to take in enough air to breathe normally. Choking can be caused by a variety of factors, including food becoming lodged in the throat, an allergic reaction, or a foreign object blocking the airway. In some cases, choking can be fatal if not treated quickly.