To internalize.
To work as an intern. Usually with little or no pay or other legal prerogatives of employment, for the purpose of furthering a program of education.
To imprison somebody, usually without trial.
To confine or hold (foreign military personnel who stray into the state's territory) within prescribed limits during wartime.
A student or recent graduate who works in order to gain experience in their chosen field.
A medical student or recent graduate working in a hospital as a final part of medical training.
A person who is interned, forcibly or voluntarily.
To enclose (animals) in a pen.
To schedule; fix a date for.
To cause to be stuck in a situation; to be forced into a situation by circumstances.