internal, inner, intern, resident
Soy el Dr. Klinger, médico interno.
I'm Dr. Klinger, an internal medicine physician.
— Die Fälscher (2007)
Ponlo en tu bolsillo interno, al lado del corazón.
Put it in your inside pocket, next to your heart.
This is for internal use.
Un fantasma es un signo visible externo de un miedo interno.
A ghost is an external, visible sign of an internal fear.