Clicks: These are the most common sounds made by dolphins, used for echolocation. They are sharp, high-pitched noises that help dolphins navigate and find food.
Whistles: Dolphins also make whistles, which are used for communication. These sounds can be long or short, high or low, and are thought to be used for identification, social interaction, and mating.
Other sounds: Dolphins also make other sounds, including squeaks, barks, moans, and even "grunts." These sounds are less common but are thought to be used for a variety of purposes, including attracting attention, expressing emotion, and coordinating hunting.
So, there isn't one specific name for the sound dolphins make, but rather a variety of sounds that serve different functions.