1
a
: a wrongful dispossession
b
: a judgment removing an officer or depriving a corporation of a franchise
2
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
The overhaul marks the first major move by CEO and President Maziar Mike Doustdar, who took the reins at the pharma giant last month following the surprise ouster of Lars Fruergaard Jørgensen.
—
Karen Gilchrist,katrina Bishop, CNBC, 10 Sep. 2025
Along with Monarez, the committee will hear from Debra Houry, the former chief medical officer for the CDC, who resigned—alongside two other high-ranking CDC leaders—upon Monarez's ouster.
—Beth Mole, ArsTechnica, 10 Sep. 2025
Fox last overhauled its weekday primetime lineup in 2023, following the ouster of Tucker Carlson.
—Alex Weprin, HollywoodReporter, 10 Sep. 2025
Betting odds that Minister of the Armed Forces Sébastien Lecornu would become the new prime minister surged following Bayrou's ouster on Monday on Polymarket.
—Gabe Whisnant, MSNBC Newsweek, 8 Sep. 2025
See All Example Sentences for ouster
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Karen Gilchrist,katrina Bishop, CNBC, 10 Sep. 2025
Along with Monarez, the committee will hear from Debra Houry, the former chief medical officer for the CDC, who resigned—alongside two other high-ranking CDC leaders—upon Monarez's ouster.
—Beth Mole, ArsTechnica, 10 Sep. 2025
Fox last overhauled its weekday primetime lineup in 2023, following the ouster of Tucker Carlson.
—Alex Weprin, HollywoodReporter, 10 Sep. 2025
Betting odds that Minister of the Armed Forces Sébastien Lecornu would become the new prime minister surged following Bayrou's ouster on Monday on Polymarket.
—Gabe Whisnant, MSNBC Newsweek, 8 Sep. 2025
See All Example Sentences for ouster
Cite this Entry
“Ouster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ouster. Accessed 15 Sep. 2025.
Copy CitationKids 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
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