1. agreement or harmony between things; consistency or accord.
Usage: formal; often used in philosophical or literary contexts
2. in music, the quality of sounding pleasant or harmonious; the state of being consonant.
Usage: music; technical

Examples

• The consonancy between the two theories made it easy for researchers to integrate their findings.
• There is a consonancy in her values and her actions that earns her respect.
• The consonancy of the chord created a pleasing, resolved sound.
• The author sought consonancy between the novel's themes and its structure.
• Musicians appreciate the consonancy of a well-tuned instrument.
• The consonancy of the team's strategy with their goals led to success.