The civil rights movement marked a period of social upheaval in the U.S.
the emotional upheaval of divorce
a period of cultural and social upheavals
The island was created by an upheaval of the ocean floor.
The lake was formed by geologic upheaval.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'upheaval.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.