To annul, do away with; to cancel.
To overthrow or destroy.
To turn over, capsize or upset.
To diminish the significance of a previous defeat by winning; to make a comeback from.
Of a body of water: to undergo a limnic eruption, where dissolved gas suddenly erupts from the depths.
To reverse (a decision); to overrule or rescind.
The overturning or overthrow of some institution or state of affairs; ruin.
A turning over or upside-down; inversion.