A collision or clash — either physical collision between objects or a clash of opinions/emotions between people.
交差点で車のぶつかり合いが起きた。
Cars collided at the intersection.
会議では意見のぶつかり合いが続き、結論が出なかった。
In the meeting, clashes of opinion continued and no conclusion was reached.
舞台では感情のぶつかり合いが観客の心を動かした。
On stage, the emotional clashes moved the audience.