Title: Navajo language
Content:  Navajo or Navaho (Navajo: Diné bizaad or Naabeehó bizaad ) is a Southern Athabaskan language of the Na-Dené family, through which it is related to languages spoken across the western areas of North America. Navajo is spoken primarily in the Southwestern United States, especially on the Navajo Nation. It is one of the most widely spoken Native American languages and is the most widely spoken north of the Mexico–United States border, with almost 170,000 Americans speaking Navajo at home as of 2011. The language has struggled to keep a healthy speaker base, although this problem has been alleviated to some extent by extensive education programs in the Navajo Nation. The language has a fairly large phoneme inventory; it includes several uncommon consonants that are not found in English. 
Title: Navajo
Content:   The Navajos are speakers of a Na-Dené Southern Athabaskan language which they call Diné bizaad (lit. 'People's language'). The term Navajo comes from Spanish missionaries and historians who referred to the Pueblo Indians through this term, although they referred to themselves as the Diné, meaning 'the people'. The language comprises two geographic, mutually intelligible dialects. The Apache language is closely related to the Navajo Language; the Navajos and Apaches are believed to have migrated from northwestern Canada and eastern Alaska, where the majority of Athabaskan speakers reside. Speakers of various other Athabaskan languages located in Canada may still comprehend the Navajo language despite the geographic and linguistic deviation of the languages. Additionally, some 
Title: Languages of the United States
Content:  According to the 2000 Census and other language surveys, the largest Native American language-speaking community by far is the Navajo. Navajo is an Athabaskan language of the Na-Dené family, with 178,000 speakers, primarily in the states of Arizona, New Mexico, and Utah. Altogether, Navajo speakers make up more than 50% of all Native American language speakers in the United States. Western Apache, with 12,500 speakers, also mostly in Arizona, is closely related to Navajo but not mutually intelligible with it. Navajo and other Athabaskan languages in the Southwest are relative outliers; most other Athabascan languages are spoken in the Pacific Northwest and Alaska. Navajo has struggled to keep a healthy speaker base, although this problem has been alleviated to some extent by extensive education programs in the Navajo Nation, including a Navajo language immersion school in Fort Defiance, Arizona.
Title: Native American languages of Utah
Content: Navajo language is spoken on the Navajo Nation, which is split between Arizona, New Mexico, and Utah, in order of decreasing land area present in each respective state. Navajo is an Athabaskan language. 
Title: Navajo language
Content:  The word Navajo is an exonym: it comes from the Tewa word Navahu, which combines the roots nava ('field') and hu ('valley') to mean 'large field'. It was borrowed into Spanish to refer to an area of present-day northwestern New Mexico, and later into English for the Navajo tribe and their language. The alternative spelling Navaho is considered antiquated; even anthropologist Berard Haile spelled it with a "j" in accordance with contemporary usage despite his personal objections. The Navajo refer to themselves as the Diné ('People'), with their language known as Diné bizaad ('People's language') or Naabeehó bizaad.
Title: Navajo language
Content:  overall but less than among other Americans speaking a different Native American language (85.4 percent). Navajo was the only Native American language afforded its own category in the survey; domestic Navajo speakers represented 46.4 percent of all domestic Native language speakers (only 195,407 Americans have a different home Native language). As of July 2014, Ethnologue classes Navajo as "6b" (In Trouble), signifying that few, but some, parents teach the language to their offspring and that concerted efforts at revitalization could easily protect the language. Navajo had a high population for a language in this category. About half of all Navajo people live on Navajo Nation land, an area spanning parts 
Title: Navajo language
Content:  The vast majority of Navajo vocabulary is of Athabaskan origin. However, the vocabulary size is still fairly small; one estimate counted 6,245 noun bases and 9,000 verb bases, with most of these nouns being derived from verbs. Prior to the European colonization of the Americas, Navajo did not borrow much from other languages, including from other Athabaskan and even Apachean languages. The Athabaskan family is fairly diverse in both phonology and morphology due to its languages' prolonged relative isolation. Even the Pueblo peoples, with whom the Navajo interacted with for centuries and borrowed cultural customs, have lent few words to the Navajo language. After Spain and Mexico 
Title: Career Enrichment Center
Content:  of New Mexico, Arizona and Utah. Navajo is a living modern language and one of considerable complexity.  A coded form of Navajo was used as communications by the United States Marine Corps during World War 2, and never compromised.  The tribe's government conducts all of their official oral discussions in their capital city of Window Rock, Arizona, in the Dine (Navajo) language.  The class instructs students in reading, writing and speaking of the Dine (Navajo) language. ; German - Germany is currently the largest nation-state in the European Union, and German is spoken by many people in Germany, Austria, Holland, Switzerland and other surrounding 
Title: Navajo
Content:  The Navajo (British English: Navaho; Diné or Naabeehó) are a Native American people of the Southwestern United States. At more than 399,494 enrolled tribal members, the Navajo Nation is the largest federally recognized tribe in the U.S. (the Cherokee Nation being the second largest); the Navajo Nation has the largest reservation in the country. The reservation straddles the Four Corners region and covers more than 27,000 square miles (70,000 square km) of land in Arizona, Utah and New Mexico. The Navajo language is spoken throughout the region, and most Navajos also speak English. The states with the largest Navajo populations are Arizona (140,263) and New Mexico (108,306). More than three-quarters of the enrolled Navajo population resides in these two states. Besides the Navajo Nation proper, a small group of ethnic Navajos are members of the federally recognized Colorado River Indian Tribes.
Title: Native American languages of Nevada
Content:  There are four Native American languages currently spoken in Nevada. Population estimates are based on figures from Ethnologue and U.S. Census data, as given in sub-pages below. The four languages are shown in the table below:

Question: what language do navajo people speak?
Answer: Spanish Language.