Stands for New South Wales, which is Australia's most populous state (with 6.8 million people, 8.45/km²) and third most densely populated state/territory after the ACT (137.87/km²) and Victoria (22.08/km²).
NSW contains 3 largest cities -- Newcastle, Sydney and Wollongong -- which some think is what 'NSW' stands for.
Sydney suffers from a term known as 'Los Angelization', an urban sprawl of 4.4 million people from mixed backgrounds who often fight each other in their originating countries.
New South Wales also contains other provincial coastal cities such as Newcastle (north of Sydney) and Wollongong (south of Sydney), which have 500,000 and 275,000 people, respectively. Also, NSW is the only state where you'll find the nation's highest peak, Mount Kosciuszko, at 2,228m high.
Most of NSW is located in the UTC+10 timezone (EST), and UTC+11 (EDST) during the daylight saving months. A notable exception is the western NSW town of Broken Hill which associates itself as part of South Australia due to it's proximity to Adelaide, therefor it is constantly in the timezone 30 minutes behind the rest of the state.
The state motto is "Orta Recens Quam Pura Nites" which translates to Newly "Risen, How Brightly You Shine" and NSW is also nicknamed the Premier State and also the First State.
NSW shits over the rest of the country, probably because it is the center of the universe.
Prices shown in USD.