The dollar symbol is the dollar, and the Hong Kong dollar symbol is: Hong Kong dollar or HKD. For the sake of distinguishing, the US dollar is U.S. $ (pronounced U.S.dollar), the Canadian dollar is Can$, the Australian dollar is A$, and the Hong Kong dollar is HK$.

Dollar (currency abbreviation: USD；; ISO42 17 currency code: USD; ; Symbol: USD) is the legal tender of the United States of America. At present, the US dollar banknotes in circulation are all the banknotes issued since 1929.

Hong Kong dollar or Hong Kong dollar is the legal tender of Hong Kong. According to the Basic Law of Hong Kong and the Sino-British Joint Declaration, Hong Kong's autonomy includes the right to issue its own currency. Its official ISO42 17 abbreviation is HKD；; ; The sign is Hong Kong dollars.

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