The Yupik languages () are a family of languages spoken by the Yupik peoples of western and south-central Alaska and Chukotka. The Yupik languages differ enough from one another that they are not mutually intelligible, although speakers of one of the languages may understand the general idea of a conversation of speakers of another of the languages. One of them, Sirenik, has been extinct since 1997. The Yupik languages are in the family of Eskimo–Aleut languages. The Aleut and Eskimo languages diverged around 2000 BC (contemporaneous with the split of Indo-Iranian); within the Eskimo classification, the Yupik languages diverged from each other and from the Inuit language around 1000 AD. List of languages Naukan Yupik (also Naukanski): spoken by perhaps 100 people in and around Lavrentiya, Lorino, and Uelen on the Chukotka Peninsula of Eastern Siberia. Central Siberian Yupik (also Yupigestun, Akuzipigestun, Akuzipik, Siberian Yupik, Siberian Yupik Eskimo, Central Siberian Yupik Eskimo, St. Lawrence Island Yupik, Yuit, Asiatic Eskimo, Jupigyt, Yupihyt, Bering Strait Yupik): spoken by the majority of Yupik in the Russian Far East and by the people on St. Lawrence Island, Alaska. Most of the 1,100 Yupiks on St. Lawrence Island still speak the St. Lawrence dialect of this language. About 300 of the 1,000 Siberian Yupiks in Russia still speak the Chaplino dialect of this language. Central Alaskan Yup'ik (also Yugtun, Central Yup'ik, Yup'ik, West Alaska Eskimo): spoken on the Alaska mainland from Norton Sound down to the Alaska Peninsula and on some islands such as Nunivak. The name of this language is spelled Yup'ik, with an apostrophe that specifies the elongated 'p' in the way Yupik is pronounced; all the other languages are spelled Yupik, but all are pronounced the same. Of the about 21,000 Central Alaskan Yup'ik, around 20,000 still spoke this language at home in 2013. There are several dialects of Central Alaskan Yup'ik. The largest dialect, General Central Yup'ik or Yugtun, is spoken in the Yukon River, Nelson Island, Kuskokwim River, and Bristol Bay areas. There are three other Central Alaskan Yup'ik dialects: Norton Sound, Hooper Bay/Chevak, and Nunivak Island (called Cup’ik or Cup'ig). The dialects differ in pronunciation and in vocabulary. Within the General Central Yup'ik dialect there are geographic subdialects which differ mostly in word choices. Alutiiq (also Alutiit’stun or Sugt'stun, Supik, Sugpiaq, Pacific Gulf Yupik, Pacific Yupik, or Chugach): is spoken from the Alaska Peninsula eastward to Prince William Sound.