The Otomanguean languages are a family of indigenous languages primarily spoken in Mexico. This language family includes several distinct languages, such as Otomí, Mazatec, and Mixtec, each with its own dialects. These languages are known for their complex tonal systems, which can change the meaning of words based on pitch. Otomanguean languages are part of one of the oldest language families in the Americas, with a rich history and cultural significance. They are spoken by various indigenous communities, and efforts are being made to preserve and revitalize these languages in the face of globalization and language shift.