Oto-Manguean languages

Oto-Manguean is a family of Indigenous languages spoken mainly in southern and central Mexico. Its branches include Mixtec, Zapotec, Otomi, and Mazahua.

Oto-Pamean languages: A branch of Oto-Manguean containing languages such as Otomi, Mazahua, and Matlatzinca. It groups several languages of central Mexico within the family.
Tonal language: A language in which pitch distinctions can differentiate words or grammatical forms. Many Oto-Manguean languages use lexical or grammatical tone.
Proto-Oto-Manguean language: The reconstructed common ancestor of the Oto-Manguean languages, inferred through comparative linguistics. It represents the family's unattested ancestral language.
Language revitalization: Efforts to increase the use, transmission, and public presence of a language facing decline. Many Oto-Manguean communities work to strengthen intergenerational language transmission.
Language shift: The process by which a community increasingly uses another language across generations. Spanish expansion has contributed to declining transmission in some Oto-Manguean communities.
Mixtecan languages: A branch of Oto-Manguean that includes Mixtec languages and Cuicatec. Mixtec belongs to this major branch of the family.
Nasalization: A speech feature produced with airflow through the nose, often affecting vowels or consonants. Nasal vowels and consonants are important in descriptions of several family members.
Otomanguean homeland: The proposed original region where Proto-Oto-Manguean was spoken before the family diversified. Its location is debated, with proposals centered in Mexico.
Indigenous language education in Mexico: Teaching and learning programs involving Mexico's Indigenous languages in schools and communities. Oto-Manguean languages feature in local bilingual education and literacy initiatives.
Language endangerment: The condition in which a language faces declining use and risk of losing fluent speakers. Several Oto-Manguean varieties face unequal pressures on speaker numbers and transmission.

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