WordWeb Online

1. (physics) a brief event in which two or more bodies come together
   "the collision of the particles resulted in an exchange of energy and a change of direction";
   - hit
    
2. An accident resulting from violent impact of a moving object
   "three passengers were killed in the collision"; "the collision of the two ships resulted in a serious oil spill"
    
3. A conflict of opposed ideas, attitudes or goals
   "a collision of interests"

Derived forms: collisions

Type of: accident, conflict, contact, difference, difference of opinion, dispute, impinging, striking

Encyclopedia: Collision