The practice or policy of social or political upheaval.

Disruptive change, from one state to another. / The process of being heaved upward, especially the raising of part of the earth's crust. / A sudden violent upset, disruption or convulsion.

(transitive) To heave or lift up; raise up or aloft. / (transitive) To lift or thrust something upward forcefully, or be similarly lifted or thrust upward. / (intransitive) To be lifted up; rise.

plural of upheaval

simple past tense and past participle of upheave

present participle of upheave

upheaval

Third-person singular simple present indicative form of upheave

plural of upheaving

plural of upheaver