Hán-Nôm Online dictionary was a pretty professional and prestige software in the field of Hán-Nôm lookup on the Internet, an area that not many people do. With Hán-Nôm online dictionary, users can look up the Hán and Nôm fully, fast, accurately and conveniently thanks to three integrated dictionary: Vietnamese-Chinese, Vietnamese-Ancient Vietnammese, and Chinese-Vietnamese