Main definitions of r in English

: r1R2R3

r1

  • 1Recto.

  • 2(giving position or direction) right.

    ‘l to r: Evan, Nic, and David’
  • 3Law
    Rule.

    ‘under r 7.4 (6) the court may hear an application immediately’

  • 1Radius.

    ‘2πr’
  • 2Statistics
    Correlation coefficient.

    ‘sigmoidoscopic and symptom scores also showed a significant correlation with each other (r = 0.91)’

Pronunciation:

r

/ɑː/

Main definitions of r in English

: r1R2R3

R2

(also r)

noun

  • 1The eighteenth letter of the alphabet.

    1. 1.1Denoting the next after Q in a set of items, categories, etc.

Pronunciation:

R

/ɑː/

Main definitions of r in English

: r1R2R3

R3

  • 1Rand.

    ‘a farm worth nearly R1,3 million’
  • 2(in names of sports clubs) Rangers or Rovers.

    ‘Berwick R’
    ‘Featherstone R’
  • 3Réaumur (a temperature scale, now obsolete)

    ‘198.6 °R’
  • 4Regina or Rex.

    ‘Elizabeth R’
  • 5Registered as a trademark.

  • 6(in the US) Republican.

  • 7North American (in film classification) restricted (denoting films restricted to viewers over a certain age).

  • 8(on a gear shift) reverse.

  • 9River (chiefly on maps).

  • 10Roentgen(s).

  • 11Romania (international vehicle registration).

  • 12Rook (in recording moves in chess)

    ‘21.Rh4’
  • 13Cricket
    (on scorecards) run(s).

  • 1Chemistry
    An unspecified alkyl or other organic radical or group.

  • 2Electrical resistance.

  • 3Chemistry
    The gas constant.

Pronunciation:

R

/ɑː/