vt.

1. 使翻转；使倒下，翻倒
   She overturned the bottle.

   她把瓶子打翻了。

2. 颠覆；推翻；破坏；废除
   Some high-ranking officers plotted to overturn the government.

   有几名高级军官策划推翻政府。

vi.

1. 倾覆；倒下；翻身
   The boat overturned.

   船翻了。

n.

1. 翻转，倾覆；打翻；颠覆；废除
2. 【经】周转，流通

v.

1. turn over and come to rest upside down.
2. abolish, invalidate, or reverse (an established fact or system, legal decision, etc.).

n.

1. an act of overturning.
2. Ecology  the occasional mixing of the water of a thermally stratified lake.