Chichén Itzá Syllabification: (Chi·chén It·zá)Pronunciation: /CHiˌCHen ˈitsä/Definition of Chichén Itzá a site in northern Yucatán, Mexico, the center of the Mayan empire after ad 918 until about 1200. Its pyramids, temples, and other structures have been partly restored. Chichén Itzá in other Oxford dictionaries Definition of Chichén Itzá in the British & World English dictionary