understand

/ˌɞndəɹˈstand/

meaning in plain English

To know what something means or why it happens.

Picture a person under a stand, listening so they can understand the story.

for example

I'm sorry, I don't understand.

Imagine you’re trying to teach a child why the sky is blue, and after explaining the science, they finally nod and say, "Oh, I understand now." That moment of clarity—when the pieces click into place—is what it means to truly understand something.