Common abbreviation for Australia or Austrian, depending on context.
Modern abbreviation from 'Australia' (from Latin 'australis' meaning 'southern') or 'Austrian' (from 'Austria'). These shortened forms emerged in the 20th century with increased international communication.
This tiny abbreviation showcases how globalization creates linguistic efficiency - four letters can represent either a continent-nation or a European republic, with context determining meaning. It's linguistic multitasking at its finest.
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