clash表示冲撞，culture clash 文化冲突；文化冲击；文化大冲撞。

【例句】
So that little display was just a culture clash?
所以刚才那一幕只不过是一次文化冲突？

A common problem after the merger is the corporate culture clash between companies.
合并后最常见的问题是公司间的企业文化冲突。