* Screeches: High-pitched and piercing calls often used for alarm.
* Howls: Deep, resonant calls often used for communication over long distances.
* Chirps: Short, high-pitched sounds used for communication between individuals.
* Grunts: Low, guttural sounds used for communication.
* Barks: Sharp, short sounds used for alarm.
The specific sound a monkey makes depends on the species and the context.