overthrow (
http://definr.com/overthrow)
n 1: the termination of a ruler or institution (especially by
force)
2: the act of disturbing the mind or body; "his carelessness
could have caused an ecological upset"; "she was
unprepared for this sudden overthrow of their normal way
of living" [syn:
upset,
derangement]
v 1: cause the downfall of; of rulers; "The Czar was overthrown";
"subvert the ruling class" [syn:
subvert,
overturn,
bring down]
2: rule against; "The Republicans were overruled when the House
voted on the bill" [syn:
overrule,
overturn,
override,
reverse]