An expulsion is when someone is forced to leave a group or organization against their will.
Expulsion often happens in schools and universities, but it can also occur in other groups like sports teams or clubs. When someone commits a serious rule break, they might be expelled from the team or school for a year or forever. Expulsion is usually given after careful consideration by teachers, coaches, or administrators who have reviewed all the facts of the situation. This means that expulsion is a serious consequence not taken lightly.
To eject or erupt.
