| Noun | 1. | overthrow - the termination of a ruler or institution (especially by force) | |
| 2. | overthrow - 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"disturbance - the act of disturbing something or someone; setting something in motion | |
| Verb | 1. | overthrow - cause the downfall of; of rulers; "The Czar was overthrown"; "subvert the ruling class" | |
| 2. | overthrow - rule against; "The Republicans were overruled when the House voted on the bill"decree, rule - decide with authority; "The King decreed that all first-born males should be killed" | |