Ayyavazhi is a belief system followed by millions of people in Southern India. It is a monotheistic religion characterized by an emphasis on the worship of the one and only God, Ayya Vaikundar. There are several synonyms for the word Ayyavazhi, some of which include Ayyavaikundam, Ayyaism, and Ayyavazhiyam. These terms are often used interchangeably to refer to the same faith. Other synonyms include Swamithope Pathi, Ayya Sambandham, and Ayya Dom. Regardless of the term used, Ayyavazhi represents a unique blend of Hindu and Christian beliefs, making it a fascinating subject for study and exploration.