Hong Kong Dollar is the official currency of Hong Kong. It is abbreviated as HKD and is used for all transactions in the country. There are several words that can be used as synonyms for the Hong Kong Dollar. Some of the commonly used words include HK currency, Hong Kong Buck, Hong Kong Money, Hong Kong Coin, and Hong Kong Notes. The currency has been in use since 1863 and is pegged to the US dollar at a fixed exchange rate. It is widely accepted in Hong Kong and is also used in the neighboring regions of Macau and southern China. The Hong Kong Dollar is a valuable currency and is recognized as a highly stable and reliable form of currency.