principal
A. -adjective
1. [reason, cause, source] principal
·our principal concern is the well-being of our children
·nuestra mayor or principal preocupaciónoun es el bienestar de nuestros hijos
2. (music) primero
3. (finance)
·principal amount   capital (m) principal, principal (m)
B. -noun
1. [of school, college] director (m) / directoa (f) (university) rector (m) / rectoa (f)
2. (theatre) protagonista masculine and feminine principal
3. (music) primer (m) / primea (f)
4. (finance)   capital (m), principal (m)
·principal and interest
·el principal y los intereses
C. -compound
·principal boy -noun
(British, Great Britain) (theatre) joven héroe (m) papel de actriz en la "pantomime" navideña PANTOMIME