upheaval

upheaval

CEFR: C1-C2 /up-heaval/ [ah0.p.hh.iy1.v.ah0.l]

An upheaval is a violent disturbance. It can mean a violent or disturbing change.

Example Sentences:
The French Revolution was a period of social and political upheaval in France from 1789 to 1799.​
There was an upheaval at the previous soccer game, so security was tightened for the rest of the season.