(linear algebra) A relation between two matrices of the same size, such that every row of one matrix is a linear combination of the rows of the other matrix, and vice versa. It is an equivalence relation.

In an auditorium or sports venue, the line of side-by-side seats closest to the stage, playing field, or other location where the activity of interest is occurring.

The section of a prison which houses those inmates who are sentenced to death.

The last row of seats in a theater or any group of seats. / A row near the back of the theater or group of seats. / (rugby) The row of players in a scrum, consisting of two flankers and a number eight.

(derogatory) An especially dilapidated section of a city, characterized by abandoned or run-down buildings and vices such as drug dealing and prostitution, and frequented by homeless people.

(chiefly US) A variety of residential building where the individual houses lining a street share adjacent walls in common and have a continuous stretch of roof

plural of row house

(mathematics) The vector space generated by all the row vectors of a matrix.

(idiomatic) Able to witness everything. / (idiomatic) Prominent, demanding attention. / Used other than figuratively or idiomatically: see in, front row.

Alternative form of pervert's row