intern
US /ˈɪn.tɝːn/
UK /ˈɪn.tɝːn/

1.
a student or trainee who works, sometimes without pay, in order to gain practical experience in a field
:
•
She spent the summer as an intern at a law firm.
•
The company offers paid internships for college students.
1.
to work as an intern
:
•
She hopes to intern at a major tech company next summer.
•
Many medical students intern at hospitals before becoming full doctors.