What does "community language" mean?

An unofficial language spoken by a minority of people.

What is a synonym for "community language"?

Common synonyms include: native-language.

noun

noun ·Rare ·Advanced level

Noun

1
An unofficial language spoken by a minority of people.
"Commonly spoken community languages in Australia include Cantonese, Mandarin, Vietnamese, Arabic, Greek, Italian, indigenous languages, and so on."
2
Any of the official languages of the European Union.
3
An unofficial language spoken as a local lingua franca among people of diverse ethno-linguistic backgrounds.
"1985 UNESCO Regional Office for Education in Africa. 1985. African community languages and their use in literacy and education : a regional survey. Dakar : UNESCO. Such languages, which serve the purposes of general communication over fairly wide areas within countries, are what are referred to as the community languages of Africa."

"Commonly spoken community languages in Australia include Cantonese, Mandarin, Vietnamese, Arabic, Greek, Italian, indigenous languages, and so on."