like: rên rỉ
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
rên rỉ * ☊ 
to groan, moan * ☊
[ rên ] : to complain, moan, groan
[ rỉ ] : (1) to rust, rusty; (2) small or gentle repetitions