1. present participle of harmonise: to combine different musical notes to create a pleasing sound
Usage: British spelling
2. present participle of harmonise: to bring into agreement or make compatible
Usage: British spelling

Examples

• The choir members were harmonising beautifully during rehearsal.
• She spent hours harmonising the different vocal parts.
• The government is harmonising tax policies across regions.
• They are harmonising their work schedules to spend more time together.
• The designer is harmonising the colors in the room.
• The committee is harmonising conflicting viewpoints on the proposal.