sudariti se

1. (sudariti se s + instr.) to collide; to crash into
   Dva automobila su se sudarila na raskrsnici. — Two cars collided at the intersection.
   Na hodniku sam se sudario s komšijom. — I bumped into my neighbour in the hallway.
2. (of opinions, interests) to clash; to come into conflict
   Na sastanku su se sudarila dva potpuno različita mišljenja. — Two completely different opinions clashed at the meeting.

Usually used reflexively: sudariti se s kim/čim.