1.Definition: (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"

Related Noun(s):hit

Category: General

2.Definition: a conflict of opposed ideas or attitudes or goals

"A collision of interests"

Category: General

3.Definition: 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"

Category: General