来自古法语oster,驱逐，赶走，来自拉丁语obstare,站在对面，阻止，阻碍，来自ob-,相对，对着的，-st,站，站立，词源同stand.引申词义剥夺，罢免。词义演变比较obviate.

1. The legislative body had voted to oust the country's onetime rulers.

立法机构通过投票将该国的前度领导人赶下了台。

2. The president has gone along with the hardliners lest they be tempted to oust him.

总统同意了强硬派的意见，以免他们产生赶他下台的念头。

3. Last week they tried to oust him in a parliamentary vote of no confidence.

上周，他们试图通过议会的不信任投票将他罢免。

4. Baby cuckoos oust other baby birds from their nests.

布谷鸟的雏鸟把其他鸟的雏鸟逐出巢外.

5. Take care that quantity does not oust quality.

注意不要一味追求数量而忽视质量.