Perspire is a term used to describe the process of sweating, which is the body's natural way of cooling itself down. EXUDE (5 letters) is a synonym for perspire, meaning to emit or discharge moisture or vapor. SWELTER (7 letters) is another synonym for perspire, meaning to be extremely hot and uncomfortable. SWEAT (5 letters) is another word for perspire, meaning to excrete moisture through the skin. EGEST (5 letters) is yet another synonym for perspire, meaning to expel or discharge from the body. Breakasweat (11 letters) is an informal phrase used to describe the act of perspiring.