topple
v. B2 Upper Intermediate US //ˈtɑpəɫ// UK //tˈɒpəl// top·ple
v. to fall over or to knock someone or something down. You can also use it to describe a leader or government losing power suddenly.
v. to fall over or to cause something to fall over; to overthrow a person in power or a government. Transitive when referring to an object or a leader; intransitive when describing the act of falling.
The heavy wind toppled the old fence.
The scandal led to the sudden topple of the prime minister and his entire cabinet.
While the physical structure of the bridge remained intact, the political system toppled overnight as the public lost faith in the ruling party's ability to manage the crisis.
From top + -le (frequentative verb suffix).