This is the 2753rd most frequent German word.
kollidierte
"Collided."
Here 'kollidierte' is used in the sense of a physical collision between two entities.
Das Auto kollidierte mit einem Baum.
The car collided with a tree.
Here 'kollidierten' is used figuratively to describe conflicting ideas.
Seine Ideen kollidierten mit den Vorstellungen des Teams.
His ideas collided with the team's concepts.
In this case, 'kollidierte' expresses a near physical encounter or crash that was ultimately avoided.