intern

nouns

an advanced student or graduate in medicine gaining supervised practical experience (`houseman' is a British term)
is derived from

verbs

deprive of freedom
"During WW II, Japanese were interned in camps in the West"
is derived from
is derived from
is derived from
is a type of (narrower)
deprive of freedom; take into confinement
work as an intern
"The young doctor is interning at the Medical Center this year"
is derived from
is a type of (narrower)
exert oneself by doing mental or physical work for a purpose or out of necessity
"I will work hard to improve my grades"; "she worked hard for better living conditions for the poor"