like: đồng thời
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
đồng thời * ☊ 
at the same time * ☊
[ đồng ] : (1) unit of currency, money; coin; (2) field; (3) same, co-, fellow; (4) copper, brass
[ thời ] : time(s), era
OXF3000: 
đồng thời 
contemporary