1. in a triple manner; three times as much
2. in a high-pitched manner
Usage: music

Examples

• The cost was trebly what we expected to pay.
• She was trebly blessed with talent, beauty, and intelligence.
• The violin sang trebly above the orchestra.
• His voice cracked trebly when he was nervous.
• The alarm sounded trebly in the empty hallway.
• The soprano’s notes rang trebly through the cathedral.