[noun] - (the act of) forcing someone, or being forced, to leave somewhereThe punishment for this kind of behaviour is expulsion (from school). [U]The new government has ordered the expulsion of all foreign journalists from the country. [U]This is the second expulsion of a club member this year. [C]See also expel.
Meaning of EXPULSION in English
Cambridge English vocab. Кембриджский английский словарь. 2012