Answer:
It's like the central point or thought the author wants to communicate to readers. In paragraphs, the main idea is called the topic sentence
Explanation:
<span>the action of delaying or postponing something. (holding something off)</span>
The epicenter, epicentre (/ˈɛpɪsɛntər/) or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.