Australian Aborigines were the first people to live in Australia. There were once many, many different tribes of Aborigines, each with different traditions and languages.
Around 2% of the Australian population identifies as Aboriginal.
Something is British if it relates to Britain, or the United Kingdom. A person from Britain is British.
Someone is Buddhist if their religion is Buddhism.
A person from Denmark is called a Dane.
Dane is also a male name.
You might also be looking for the great Dane dog.
Egyptian means anything relating to Egypt, or a person from Egypt.
French is the language spoken in France, people from France or anything related to France.
Greek is the language spoken in Greece, anything related to Greece or a person from Greece.
Iranian means anything to do with Iran, or a person from Iran.