Open English Wordnet
Nouns
(n)collision, hit(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” (n)collisionan 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” (n)collisiona conflict of opposed ideas or attitudes or goals“a collision of interests”