Page "Language isolate" Paragraph 13

: In the Status column, " vibrant " means that a language is in full use by the community and being acquired as a first language by children.

" Moribund " means that a language is still spoken, but only by older people ; it is not being acquired by children, and without efforts to revive it will become extinct when current speakers die.

" Extinct " means a language is no longer spoken.

The terms " living " and " endangered " are defined by the classification of " Language Types " in ISO 639-3 ; " vibrant " is equivalent to " living " or sometimes " endangered " in ISO, depending on efforts to preserve the language, and " moribund " is " endangered " in ISO.