1. instances when two or more objects crash into each other
Usage: plural of collision
2. conflicts or clashes between opposing ideas, interests, or groups
Usage: figurative use

Examples

• The highway was closed due to multiple car collisions during the storm.
• Scientists study particle collisions in the laboratory.
• The ship’s radar system helps prevent collisions with other vessels.
• There were several collisions between protesters and police.
• The merger caused collisions between the two companies’ corporate cultures.
• Air traffic controllers work to avoid collisions between aircraft.
• The collisions of different musical styles created a unique sound.