1. the action of gathering or assembling in large numbers
2. the arrangement of masses or volumes in art or architecture
Usage: art; architecture

1. present participle of mass; gathering or assembling in large numbers

Examples

• Troops were massing at the border for the military exercise.
• The massing of storm clouds indicated severe weather approaching.
• Protesters began massing in the town square early in the morning.
• The architect focused on the massing of the building’s volumes.
• Birds were massing on the telephone wires before migration.
• The massing of evidence against the defendant was overwhelming.
• Students were massing outside the cafeteria during lunch break.