"Dhu al-Hijjah" is the twelfth month of the Islamic calendar and is considered to be the most sacred amongst all months. It is the month that marks the annual Hajj pilgrimage to Mecca, Saudi Arabia. Apart from being recognized as the month of pilgrimage, it also holds great importance in Islam as it signifies the end of the Islamic year and the beginning of a new one. Some synonyms for the term "Dhu al-Hijjah" include Zul Hijjah, Zilhijja, and Dul Hijja. All of these terms refer to the same Islamic month and are widely used by Muslims around the world in their prayers, sermons, and daily conversations related to the Islamic calendar.