Collide
Part of speech: verb
Definition: To impact directly, especially if violent To come into conflict, or be incompatible
Clash
Part of speech: verb
Definition: to make a loud clashto come into conflict
Part of speech: noun
Definition: A loud sound.A skirmish, a hostile encounter.
Example sentence: Light is meaningful only in relation to darkness, and truth presupposes error. It is these mingled opposites which people our life, which make it pungent, intoxicating. We only exist in terms of this conflict, in the zone where black and white clash.