The act of forcing out someone or something WordNet 3.0 & Open English WordNet

Expulsion, also known as dismissal, withdrawal, or permanent exclusion, is the permanent removal or banning of a student from a school, school district, college, university, or TAFE due to persistent violation of that institution's rules, or in extreme cases, for a single offense of marked severity. Wikipedia

In sports, an ejection is the removal of a participant from a contest due to a violation of the sport's rules. Wikipedia

Permanent exclusion from a school or university, usually punitively Wikipedia Disambiguation

The act of officially removing someone from a game Wikipedia Disambiguation

Removal of a student from an academic institution Wikidata

Removal of a participant due to violation of rules Wikidata

The act of ejecting. Wiktionary

Act of ejecting. Wiktionary (translation)

The act of excluding or shutting out; removal from consideration or taking part. Wiktionary

Act of excluding or shutting out. Wiktionary (translation)

The act of expelling or the state of being expelled. Wiktionary