bottom, middle, top
back, front
first, second, etc.
horizontal, vertical
double, single
neat
She arranged the chairs in two neat rows.

long
endless
endless rows of identical houses

in a/the row
The children stood in a row.
It rained for five days in a row (= without a break).
We have seats in the front row.

row of
a long row of houses

the end of the row, the middle of the row
rows and rows, row upon row
He looked down at row upon row of eager faces.

Row is used with these nouns as the object:
boat, dinghy