1. the belief in or worship of two gods, especially two gods of equal power
Usage: theology; philosophy of religion

Examples

• Ancient Zoroastrianism is sometimes characterized as a form of ditheism with its opposing forces of good and evil.
• The scholar argued that certain Gnostic sects practiced ditheism rather than traditional monotheism.
• Ditheism differs from polytheism in recognizing only two divine beings.
• Some interpretations of Manichaeism view it as an example of ditheism.
• The theological debate centered on whether the doctrine constituted ditheism or a form of dualistic monotheism.