1 deprive (a person) of the membership of or involvement in (a school, society, etc.).
2 force out or eject (a thing from its container etc.).
3 order or force to leave a building etc.
Derivatives:
expellable adj. expellee n. expellent adj. expeller n.
Etymology: ME f. L expellere expuls- (as EX-(1), pellere drive)
Useful english dictionary. 2012.