One of a set of rows placed one above the other (4)
I believe the answer is:
tier
(Other definitions for tier that I've seen before include "Rite for a rank" , "One of two or more rows" , "Layer, rank" , "Row, level" , "Plague" .)
I believe the answer is:
tier
(Other definitions for tier that I've seen before include "Rite for a rank" , "One of two or more rows" , "Layer, rank" , "Row, level" , "Plague" .)