"ousting" in the noun sense
1. ouster, ousting
the act of ejecting someone or forcing them out
"ousting" in the verb sense
1. oust, throw out, drum out, boot out, kick out, expel
remove from a position or office
"The chairman was ousted after he misappropriated funds"
remove and replace
"The word processor has ousted the typewriter"
Source: WordNet® (An amazing lexical database of English)
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