Aché (1520-guq) = Severely Endangered (60 percent certain, based on the evidence available) (Intergenerational transmission is interrupted, as only older generations speak Aché fluently and in most speech domains. The younger generations have switched to the two national languages in Paraguay: (non-indigenous) Guarani and Paraguayan Spanish.)
Glottolog
[guq] at ISO 639-3
[guq] at OLAC
[guq] at IMTVault
Aché at Endangered Languages Project
Aché at Grambank
Aché at WALS
Guayaki at Lexibank
Wikipedia
PHOIBLE
Wikidata