A teacher may oust you from class if you are being disruptive, or you might oust your class president from her position if you beat her in the election. To oust is to “expel,” “kick out,” or “remove and replace.”

When you oust someone, you are “giving them the boot.” A sports team is ousted from a tournament if they lose an elimination round. Oust often implies both removal and replacement. The automobile, for instance, ousted the horse as the preferred means of travel. Likewise, when a politician ousts someone from office they are taking that person’s place in office. And if you beat the all-time record in a hot-dog eating tournament, then you oust the previous record holder from their position.

Definitions of oust
  1. verb
    remove from a position or office
    “The chairman was ousted after he misappropriated funds”
    synonyms: boot out, drum out, expel, kick out, throw out
    see moresee less
    oust or exclude from a group or membership by decree
    depose, force out
    force to leave (an office)
    bring down, overthrow, overturn, subvert, topple
    cause the downfall of; of rulers
    type of:
    remove from a position or an office
  2. verb
    remove and replace
    “The word processor has ousted the typewriter”
    see moresee less
    type of:
    replace, supercede, supersede, supervene upon, supplant
    take the place or move into the position of
Word Family

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