cadet

Từ điển Oxford Advanced Learner 8th

cadet [cadet cadets] BrE [kəˈdet] NAmE [kəˈdet] noun
a young person who is training to become an officer in the police or armed forces
•army cadets

Word Origin:
early 17th cent. (originally in the sense of a younger son or daughter): from French, from Gascon dialect capdet, a diminutive based on Latin caput ‘head’. The notion “little head” or “inferior head” gave rise to that of ‘younger, junior’.

Example Bank:
•The military academy trains up to 2 000 officer cadets each year.