• A row of people or things organized in a grid pattern, often soldiers.
  • One of the eight horizontal lines of squares on a chessboard (i.e., those identified by a number).
  • 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.
  • 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.
  • A level in a scientific taxonomy system.
  • The dimensionality of an array or tensor.
  • The maximal number of linearly independent columns (or rows) of a matrix.
  • The maximum quantity of D-linearly independent elements of a module (over an integral domain D).
  • The size of any basis of a given matroid.



  • From Middle English rank, from Old English ranc, from Proto-West Germanic *rank, from Proto-Germanic *rankaz, from Proto-Indo-European *h₃reǵ-. Cognate with Dutch rank ("slender, slim"), Low German rank ("slender, projecting, lank"), Danish rank ("straight, erect, slender"), Swedish rank ("slender, shaky, wonky"), Icelandic rakkur ("straight, slender, bold, valiant").
  • From Middle English rank, from Old French ranc, rang, reng (Modern French rang), from Frankish *hring, from Proto-Germanic *hringaz.
  • Akin to Old High German hring, Old Frisian hring, Old English hring ("ring") (Modern English ring), Old Norse hringr ("ring, circle, queue, sword; ship"). More at ring.

Modern English dictionary

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