The dominant language since colonisation has been English, with little multi-lingualism among the majority population. Nevertheless, both the diverse Aboriginal groups and many immigrants continue to use languages other than English.
Before the European invasion there were around 250 Aboriginal languages, most of which probably had distinct dialects. Perhaps ninety of these languages are still spoken, with around twenty being spoken fluently by indigenous children. The decline in the use of Aboriginal languages is due to the effects of colonisation. Among some Aboriginal groups, especially in parts of the north, a number of distinctive creole dialects mix Aboriginal languages with English.
Apart from indigenous languages, some twelve major community languages are spoken at home by at least fifty thousand speakers. These are, in order of the number of speakers, Italian, Greek, Chinese, Serbo-Croatian, Arabic, German, Vietnamese, Spanish, Polish, Macedonian, Filipino languages, and Maltese. Melbourne is the most multilingual city. Migrant groups want their languages to be maintained through government policies such as the Languages Other Than English (LOTE) program in secondary schools.
Australian English probably originated as a combination of British regional dialects used by groups of convicts and others who came to the colonies. Australian English is different from British and American English but does not vary much regionally. Various social factors affect accent and style, including social class, education, gender (women tend to use the cultivated variety more than men do), and age.
The majority of Australians or their ancestors immigrated within the past three centuries, with the exception of the Indigenous population and other outer lying islands who became Australian through expansion of the country. Despite its multi-ethnic composition, the culture of Australia held in common by most Australians can also be referred to as mainstream ” Australian culture”, a Western culture largely derived from the traditions of British and Irish colonists, settlers, and immigrants. Large-scale immigration occurred after the First and Second World Wars, with many post-World War II migrants coming from Southern and Eastern Europe introducing a variety of elements. Immigration from the Middle East, south and east Asia, and the Pacific islands has also been having an impact.
The predominance of the English language, the existence of a democratic system of government drawing upon the British traditions of Westminster Government, Parliamentarianism and constitutional monarchy, American constitutionalist and federalist traditions, Christianity as the dominant religion, and the popularity of sports originating in (or influenced by) the British Isles, are all evidence of a significant Anglo-Celtic heritage. Australian culture has diverged significantly since British settlement.