topple-v; 2 Senses

Sense Number 1: (cause to) fall down

In a bold blow to hopes for peace, bombers toppled the towering minarets of the revered shrine.
The half a week rainfall toppled the tree which toppled the electric lines.
The robot toppled over and was down for the count.
Finally, the outhouse toppled into the creek and floated away.

VerbNet: other_cos-45.4
FrameNet: Motion_directional
PropBank: topple.01
WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: (cause to) lose authority, power, or position

The original financial framework toppled after the General Assembly's May denial.
On 14 November 1980, Vieira toppled the government of Luis Cabral in a bloodless military coup.
The lightly regarded Golden State Warriors toppled the top-ranked team.
The Empire State Building not only toppled the Chrysler building in height, it toppled it as the king of the city
Ten thousand years have passed since the treasonous acts of Chaos toppled the Golden Age of mankind.

VerbNet: NM
FrameNet: Change_of_leadership
PropBank: NM