A Muslim (Arabic: مسلم, Muslim, Hebrew: מוסלמי, Muslemi) is an adherent of Islam, a monotheistic Abrahamic religion. The term "Muslim" translates to "one who submits (to God)" in Arabic. Muslims believe in the core tenets of Islam, which include the belief in one God (Allah), the finality of the prophet Muhammad, and the teachings of the Quran, which they consider to be the literal word of God. Key practices of Islam include the Five Pillars: the declaration of faith (Shahada), daily prayers (Salah), almsgiving (Zakat), fasting during the month of Ramadan (Sawm), and the pilgrimage to Mecca (Hajj) at least once in a lifetime for those who are able. Islam is the second-largest religion in the world, with over 1.8 billion followers, known as Muslims, spread across diverse cultural and ethnic backgrounds.