earthquake
//ˈɜːrθkweɪk//
Noun
earthquakeSingular
earthquakesPlural
1
A sudden and violent shaking of the ground caused by movements within the earth's crust or volcanic action.
A strong earthquake struck the city early this morning.
2
A major upheaval or disruption in a situation, organization, or field.
The new policy caused an earthquake in the education system.