like: sự cô đơn
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
sự cô đơn * ☊ 
solitude, lonliness * ☊
[ sự ] : deed, act, action event, occurrence, (classifier for actions, states)
[ cô ] : (1) aunt (father’s sister); Miss (form of address for a young lady), etc.; (2) lonely, isolated, solitary
[ đơn ] : application, petition, request; single; to file
[ cô ] : Ms