The Muslim Call to Prayer is known as the Azan, which is a four-letter word. The Azan is a call to prayer that is recited by a muezzin, or a designated caller of prayer, five times a day from a mosque. It is a reminder for Muslims to stop and pray, and it is also a signal for the start of the prayer. The Azan is an important part of Islamic culture and is a reminder of the importance of faith and devotion to Allah.