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overturn
[oh-ver-turn, oh-ver-turn]
verb (used with object)
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 new findings have not overturned the theory itself.
The conspiracy finally overturned the regime.
The new findings have not overturned the theory itself.
Synonyms: conquerto reverse (an official or legal decision).
Rather than accept defeat, the company filed a complaint in federal appeals court to overturn the ruling.
verb (used without object)
to turn onto its side, face, or back; capsize.
When his canoe overturned, he lost scientific instruments and journals.
noun
the act of overturning.
the state of being overturned.
overturn
verb
to turn or cause to turn from an upright or normal position
(tr) to overthrow or destroy
(tr) to invalidate; reverse
the bill was passed in the Commons but overturned in the Lords
noun
the act of overturning or the state of being overturned
Other Word Forms
- overturnable adjective
Word History and Origins
Synonym Study
Example Sentences
The new study concludes that a lion's roaring sequence includes both the established full-throated roar and the intermediary version, overturning the long-standing assumption that only one roar type existed.
Burrows said in a statement that he disagrees with the ruling, and expects it to be overturned by the U.S.
In every chapter of his book we find animals that overturn the rules of biology—that we need water, air, heat and light to survive and thrive.
The results overturn earlier assumptions and point to a clear ecological split.
Researchers at the Hebrew University of Jerusalem have found that the magnetic component of light plays a direct part in the Faraday Effect, overturning a 180-year belief that only light's electric field was involved.
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