Определение и Значение "[keep] on top"

What is the origin of the idiom "keep on top" and when to use it?

The idiom "keep on top" likely draws its origin from the idea of staying ahead or maintaining control over a situation. This phrase is used to suggest the importance of remaining vigilant, proactive, and in control of a situation. It often implies staying ahead of potential issues or challenges, whether in personal or professional contexts.