ASX stands for Australian Securities Exchange and is the main stock exchange in Australia. Some synonyms for ASX include the stock market, the Australian stock exchange, and the financial market in Australia. Other phrases that can be used to describe ASX includes the national stock market, the Australian stock market, or simply the stock exchange in Australia. Depending on the context, other related terms could also be used such as stock trading, share market, or securities market. Overall, these synonyms and related terms all refer to the same financial marketplace where investors can buy and sell shares of publicly traded companies in Australia.