A row of people or things organized in a grid pattern, often soldiers.

(chess) One of the eight horizontal lines of squares on a chessboard (i.e., those identified by a number).

(music) In a pipe organ, a set of pipes of a certain quality for which each pipe corresponds to one key or pedal.

One's position in a list sorted by a shared property such as physical location, population, or quality.

The level of one's position in a class-based society.

(typically in the plural) A category of people, such as those who share an occupation or belong to an organisation.

A hierarchical level in an organization such as the military.

(taxonomy) A level in a scientific taxonomy system.

(mathematics) The dimensionality of an array or tensor.

(linear algebra) The maximal number of linearly independent columns (or rows) of a matrix.

(algebra) The maximum quantity of D-linearly independent elements of a module (over an integral domain D).

(mathematics) The size of any basis of a given matroid.

To place abreast, or in a line.

To have a ranking.

To assign a suitable place in a class or order; to classify.

(US) To take rank of; to outrank.

(intensifier, negative) complete, unmitigated, utter.