WHAT IS LANGUAGE REVITALISATION?

In the broad sense, revitalisation means prevention a language from dying (actively supporting, including languages into curriculum and so on). In the family context, it can mean beginning to revive your heritage language, connection with which was lost due to some circumstances (f.e. regional language is considered "rural" and a language of uneducated people, so family chooses "prestige" language over their own).

People can restart using the lost language by learning it and making this language a part of their life.

Imagine reaction of your grandparents or even great grandparents figuring out their language got one more chance!