spoken language (the spoken form of a human language)
The Mayan languages are spoken by at least 6 million indigenous Maya, primarily in Guatemala, Mexico, Belize and Honduras. In 1996, Guatemala formally recognized 21 Mayan languages by name, and...
Usually, yes. But some languages do not have writing.
Corinthian German does not have an official written language, but steps are being made to write an official dictionary for the language.
Yes