The term 'plunges' is used to describe a variety of activities involving entering water. The term can be broken down into four different words: headers (7 letters), dips (4 letters), DIVES (5 letters), and IMMERSES (8 letters). Headers refer to jumping into the water from a standing position, while dips involve entering the water from a shallow angle. DIVES involve entering the water from a higher point, such as a diving board or cliff. Finally, IMMERSES refers to completely submerging oneself in the water.