To turn or throw from a basis, foundation, or position; to overset; as, to overturn a carriage or a building.
- To cause to turn over or capsize; upset.
- To cause the ruin or destruction of; overthrow. See Synonyms at overthrow.
- Law To invalidate or reverse (a decision) by legal means: "his continuing legal battles to overturn a draft-evasion conviction” ( Robert Lipsyte).
- To turn over or capsize.
- The act or process of overturning.
- The state of having been overturned.