Navaho vs Navaho language

Navaho and Navaho language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Navaho	Yes	No	No	No
Navaho language	Yes	No	No	No

As nouns, Navaho and Navaho language are synonyms defined as:

Navaho and Navaho language: the Athapaskan language spoken by the Navaho

Other synonyms of Navaho include Navajo, Navajo language.

Navaho (noun)	Navaho language (noun)
the Athapaskan language spoken by the Navaho	the Athapaskan language spoken by the Navaho
a member of an Athapaskan people that migrated to Arizona and New Mexico and Utah