Muslim is an umbrella term for a group of people who practice the religion of Islam. ISLAMIC is a 7-letter word that refers to the religion itself, while SUFI is a 4-letter word that refers to a mystical branch of Islam. SARACEN is a 7-letter word that was used historically to refer to Muslim people, while Shi is a 3-letter word that refers to a branch of Islam that is mainly practiced in Iran and Iraq. Islamite is an 8-letter word that is used to refer to a follower of Islam.