Terminology
Vulnerable: most children speak the language, but it may be restricted to certain
domains (e.g., home)
Definitely endangered: hildren no longer learn the language as a 'mother tongue' in
the home
Severely endangered: language is spoken by grandparents and older generations;
whilethe parent generation may understand it, they do not speak it to children or among themselves
Critically endangered: the youngest speakers are grandparents and older, and they
speak the language partially and infrequently
Extinct: there are no speakers left