This is the 468th most frequent Vietnamese word.
cư
The Vietnamese word "cư" means "to live" or "to reside."
In this sentence, 'cư' is part of the word 'trung cư,' which means 'apartment.' It denotes a place of residence.
Anh ấy sống ở trung cư cao cấp.
He lives in a high-class apartment.
Here, although appearing as 'cứ,' it is related, meaning 'keeps' or 'continues,' denoting persistence.
Cô ta cứ phàn nàn về mọi thứ.
She keeps complaining about everything.
In this sentence, 'cư' is part of 'cư trú,' meaning 'to reside,' referring to the act of living or dwelling.