|char. to overlap, to pile (on top of another), to repeat||
phr. My office is in the 5th floor of this building.
n. atmospheric layer, atmosphere
adj. double-tier, double-decker, double layers
n. skin layer, veneer, surface
n. top floor, top of a building
phr. Which floor do you live on now?
nphr. first floor underground
phr. This cake has two layers/tiers.