lầu

Etymology
.

Noun

 * 1)  a multistory building
 * 2)  a floor (except the ground floor)
 * 1)  a floor (except the ground floor)

Usage notes
In southern Vietnamese, the ground floor is called and each floor above it is a  numbered from. By contrast, in northern and central Vietnamese, floors are called, the ground floor is numbered as , and technically refers to a crawl space.