A row is an orderly arrangement of people or things:
Vegetables are planted in a row.
An audience member sits in a row at a movie theater. The seats are in rows. Which row is he sitting in?
These soldiers are standing in a row.
There’s a row of houses on this street.
The word "row" is also used as a verb to describe the movement of a boat through human labor.
They’re rowing a boat down the river.
Have you ever rowed a boat?
You use paddles or oars to row a boat.
There’s one more use for the word "row." If a person achieves some sort of sequential success, one after another, the prepositional phrase "in a row" might be used.
He made five baskets, one after another. He made five in a row.
It rained four days in a row last week: Wednesday, Thursday, Friday, and Saturday.
Yolanda has won that award three years in a row: 2014, 2015, and now 2016.
Note: In British English, a row is a fight, but it’s rarely used that way in American English.
Two men got into a row outside of the pub.
A row broke out among the fans at the football match.