(transitive) To end up; to set on end. / To tip or turn over. / (figuratively) To destroy, invalidate, overthrow, or defeat. / To affect or upset drastically.

simple past tense and past participle of upend

present participle of upend

Third-person singular simple present indicative form of upend

An act of overthrowing or turning over.

A mechanical device for rotating goods into another orientation.

plural of upender

plural of upending