Collision/kəˈlɪʒn/ Definition 1 of 3Pro Tip 1/3Accidental Nature Emphasizes unintended, often sudden occurrences, typically with damage or injury. The collision at the intersection caused a traffic jam. Pro Tip 2/3Physical Contact Refers to the physical contact when two or more objects strike each other. The cyclist couldn't avoid a collision with the opening car door. Pro Tip 3/3Transport Context Commonly used in the context of vehicles like cars, boats, or planes meeting unexpectedly. Maritime rules help prevent ship collisions at sea.