landslide

A landslide is when rocks or soil suddenly move down a slope and fall, often causing damage. It can also refer to a big change in public opinion or a large number of people voting for one side in an election.

In everyday conversation, "landslide" is often used to describe not just natural disasters but also big social changes. For example, when a new law is passed by a huge majority, it's common to say that there was a landslide victory for the winning party. If a movie or book becomes incredibly popular all of a sudden, people might talk about its success being the result of a landslide in public opinion.