ouster

noun

oust·​er ˈau̇-stər 

1

a

: a wrongful dispossession

b

: a judgment removing an officer or depriving a corporation of a franchise

2

: expulsion

Examples of ouster in a Sentence

The news reported the ouster of the dictator.

the dictator's ouster by the rebels

Recent Examples on the Web

While Israel didn't play a direct role, his ouster removed another regional rival with close ties to Iran. —Greg Myre, NPR, 28 June 2025

Assistant Attorney General for Civil Rights Harmeet Dhillon, a UVA graduate, would not confirm whether the Justice Department had pushed for Ryan's ouster. —Zachary Schermele, USA Today, 28 June 2025

That appears to have done little to fend off the calls for his ouster. —Cody Copeland, Fort Worth Star-Telegram, 27 June 2025

In his remarks on Thursday, Hosseini’s frustration over Ono’s ouster was palpable. —Garrett Shanley, Miami Herald, 14 June 2025

Word History

Etymology

Anglo-French, from oster, ouster to oust

First Known Use

1531, in the meaning defined at sense 1a

Kids Definition

ouster

noun

oust·​er ˈau̇s-tər 

: the act or an instance of ousting or being ousted

Legal Definition

ouster

noun

oust·​er ˈau̇s-tər 

1

: wrongful dispossession especially of a cotenant

2

: a judgment removing a public officer or depriving a corporation of a public franchise