Reacquiring Lost Citizenship in Australia

What ended your Australian citizenship?

It can end in several ways, and they lead to different places. The most common, taking another nationality before April 2002, happened without any notice.

I took another country's citizenship I formally renounced it The government revoked it I lost it as a child, when a parent lost theirs Nothing I know of; I think I am still a citizen I'm not sure what happened