Náhuatl is a group of related languages spoken by the Nahua people in central Mexico. It is part of the Uto-Aztecan language family and has several dialects. Historically, it was the language of the Aztec Empire, and today, it is still spoken by approximately 1.5 million people. The language has a rich cultural heritage, influencing many aspects of Mexican life, including place names, food, and traditional practices. Náhuatl has contributed words to the Spanish language, such as "chocolate" and "tomato," reflecting its importance in the region's history and culture.