Dua is an Arabic word that means supplication or invocation. It is a special form of prayer in which one expresses their desires and asks for help from Allah (God). In Islam, making dua is considered to be an important part of communicating with Allah and it can be done any time during the day or night. The simplest way to say Dua in Arabic would be “dua” but there are numerous other ways to phrase this depending on what you wish to ask of Allah. For example, if you wanted someone else's prayers to reach God, then you might say “Allahumma salli alaa Muhammadin wa alaa Ali Muhammadin kama salayta alaa Ibrahim wa alaa ali Ibrahim innaka Hamidun Majid. This translates as: O Allah! Send your Peace upon Muhammad and the family of Muhammad just as You sent Your peace upon Abraham and his family; indeed You are Praiseworthy and Glorious. There are countless other variations of how to make a dua in Arabic based on the person's individual needs at the time.