-tə(r) noun
( -s )
Etymology: Anglo-French, to oust
1.
a. : a wrongful ejection or dispossession of a person from a freehold or other inheritance or from a right or franchise — compare eviction
b. : a judgment removing a public or corporate officer or depriving a corporation of a franchise or right (as a charter)
2. : an ejection from a position or place : expulsion
the ouster of the manager failed to stop the team's losing streak
called for the ouster of the man responsible for the blunder