oust
1. [ verb ] remove from a position or office
Synonyms: drum_out throw_out kick_out expel boot_out
Examples:

"The chairman was ousted after he misappropriated funds"

Related terms: remove depose excommunicate ejection
2. [ verb ] remove and replace
Examples:

"The word processor has ousted the typewriter"

Related terms: supplant
Similar spelling:   ought
  oughta