Interfaith marriage refers to a union between individuals belonging to different religious backgrounds or faiths. Some synonyms for interfaith marriage include mixed faith marriage, interdenominational marriage, interreligious marriage, and interbelief marriage. These terms are used to describe relationships that cross religious boundaries and recognize the diversity of cultures and beliefs. Mixed faith marriage specifically refers to the union between two people of different religious beliefs. Interdenominational marriage, on the other hand, is concerned with individuals that belong to different denominations or sects under the same religion. Meanwhile, interreligious marriage is more generic, as it encompasses all faiths and belief systems. Lastly, interbelief marriage refers to a union between individuals that hold different philosophical or ideological beliefs.