A person who has been forced to leave a place, especially a school, country, or organization.
From 'expel' + '-ee' (person who receives an action). The '-ee' suffix marks the recipient of an action, contrasting with '-er' or '-or' which mark the doer.
The '-ee' suffix is genius for showing power dynamics: employer/employee, trainer/trainee, expeller/expellee. It immediately tells you who has the power and who's receiving the action!
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