like: đơn nguyên
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
đơn nguyên * ☊ 
unit * ☊
[ đơn ] : application, petition, request; single; to file
[ nguyên ] : acting, holding a post temporarily; to be intact, unaltered, brand new, original; in full; all, whole, entire
[ nguyên ] : original