1. the quality or state of having two parts, aspects, or natures
2. the existence of two contrasting or opposing principles, forces, or elements
Usage: philosophy; theology

Examples

• The novel explores the duality of human nature through its complex characters.
• There’s a duality in her personality – she can be both gentle and fierce.
• The artist’s work reflects the duality of light and shadow.
• Eastern philosophy often emphasizes the duality of yin and yang.
• The duality of mind and body has been debated by philosophers for centuries.
• His writing captures the duality of urban life – both exciting and isolating.