Zuni ˈzuːni (also formerly Zuñi, endonym Shiwiʼma) is a language of the Zuni people, indigenous to western New Mexico and eastern Arizona in the United States. It is spoken by around 9,500 people, especially in the vicinity of Zuni Pueblo, New Mexico, and much smaller numbers in parts of Arizona.
Unlike most indigenous languages in the United States, Zuni is still spoken by a significant number of children and, thus, is comparatively less threatened with language endangerment. Edmund Ladd reported in 1994 that Zuni is still the main language of communication in the pueblo and is used in the home (Newman 1996).
The Zuni name for their own language, Shiwiʼma (shiwi "Zuni" + -ʼma "vernacular"; pronounced [ˈʃiwiʔma]) can be translated as "Zuni way", whereas its speakers are collectively known as ʼA꞉shiwi (ʼa꞉(w)- "plural" + shiwi "Zuni").
Zuni is considered a language isolate. The Zuni have, however, borrowed a number of words from Keres, Hopi, and O’odham pertaining to religion and religious observances.
A number of possible relationships of Zuni to other languages have been proposed by various researchers, although none of these have gained general acceptance. The main hypothetical proposals have been connections with Penutian (and Penutioid and Macro-Penutian), Tanoan, and Hokan phyla, and also the Keresan languages.
The most clearly articulated hypothesis is Newman's (1964) connection to Penutian, but even this was considered by Newman (according to Michael Silverstein) to be a tongue-in-cheek work due to the inherently problematic nature of the methodology used in Penutian studies (Goddard 1996). Newman's cognate sets suffered from common problems in comparative linguistics, such as comparing commonly borrowed forms (e.g. "tobacco"), forms with large semantic differences (e.g. "bad" and "garbage", "horse" and "hoof"), nursery forms, and onomatopoetic forms (Campbell 1997). Zuni was also included under Morris Swadesh's Penutioid proposal and Joseph Greenberg's very inclusive Penutian sub-grouping – both without convincing arguments (Campbell 1997).