verb over·turn \ˌō-vər-ˈtərn\

: to turn (something) over

: to turn over

: to decide that (a ruling, decision, etc.) is wrong and change it

Full Definition of OVERTURN

transitive verb
:  to cause to turn over :  upset <overturned the vase>
a :  invalidate, destroy
b :  reverse 2a <overturn a court ruling>
intransitive verb

Examples of OVERTURN

  1. The dog overturned the bowl.
  2. The truck went off the road and overturned several times.
  3. The court overturned his conviction.

First Known Use of OVERTURN

13th century

Related to OVERTURN


noun over·turn \ˈō-vər-ˌtərn\

Definition of OVERTURN

:  the act of overturning :  the state of being overturned
:  the sinking of surface water and rise of bottom water in a lake or sea that results from changes in temperature that commonly occur in spring and fall

First Known Use of OVERTURN

circa 1592

Other Ecology Terms

Malthusian, anthropogenic, biomass, carbon footprint, crepuscular, niche, sere, symbiosis, taiga, tundra
OVERTURNED Defined for Kids


verb over·turn \ˌō-vər-ˈtərn\

Definition of OVERTURN for Kids

:  to turn over or upside down <Waves overturned the boat.>
:  to reverse or cancel something previously decided or ordered <The judge overturned the lower court's ruling.>


Next Word in the Dictionary: over–underPrevious Word in the Dictionary: overture (verb)All Words Near: overturn
July 28, 2015
pachyderm Hear it
an elephant
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears