- to cause (something) to turn onto its side, face, or back; upset: to overturn a vase.
- to destroy the power or validity of; overthrow; defeat: The conspiracy finally overturned the regime.The new findings have not overturned the theory itself.
- to reverse (an official or legal decision): Rather than accept defeat, the company filed a complaint in federal appeals court to overturn the ruling.
- to turn onto its side, face, or back; capsize: When his canoe overturned, he lost scientific instruments and journals.
- the act of overturning.
- the state of being overturned.
- to turn or cause to turn from an upright or normal position
- to overthrow or destroy
- to invalidate; reverse
- the act of overturning or the state of being overturned
