definition of
overthrow

[1] #1 overthrow v. [subvert, overturn, bring down] cause the downfall of; of rulers; "The Czar was overthrown"; "subvert the ruling class". wn

[2] #2 overthrow n. the termination of a ruler or institution (especially by force). wn

[3] #3 overthrow n. [upset, derangement] 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". wn

[4] #4 overthrow v. [overrule, overturn, override, reverse] rule against; "The Republicans were overruled when the House voted on the bill". wn