Vertex is a noun that refers to the highest point.
The Latin word vertere (VARE tear ay) means ‘to turn,’ but its meaning has evolved over time, so that it later was used in geometry to refer to a meeting point of two lines form an angle. The word still holds that meaning, but it can also be used more metaphorically to refer to the apex or the highest point. Here’s an example of vertex being used in such a way:
With the success that she’s had, it’s easy to think that Brenda has reached the vertex of her career in law. But who knows, given her abilities, she may have not yet reached her highest point yet.
