vt to overpower; to conquer.
2. overturn ·vt to subvert; to destroy; to overthrow.
3. overturn ·noun the act off overturning, or the state of being overturned or subverted; overthrow; as, an overturn of parties.
4. overturn ·vt to turn or throw from a basis, foundation, or position; to overset; as, to overturn a carriage or a building.