There was nothing I could do to avoid a 'head-on collision'. [=a crash of two vehicles that are moving directly toward each other]
The decision put us 'on a collision course' with economic disaster.
He reported on the latest 'collision between' the two leaders.
(..) at any reactor on the planet. Finally, someone who speaks English. Is that what just happened? It's good to meet you, Dr Banner. Your work on antielectron collisions is unparalleled. And I'm a huge fan of the way you lose control and turn into an enormous green rage-monster. Thanks. (..)2012 The Avengers