This is the 296th most frequent Vietnamese word.
cũ
"Old" or "former."
Used to describe something that has aged or is not new.
Chiếc xe này đã cũ rồi.
This car is old.
Used to compare or indicate a former thing or state as superior or preferable.
Tôi thích cách trình bày cũ hơn.
I prefer the old way of presentation.
Used to refer to someone one has known for a long time or a former relationship.