AR

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AR, Ar, or A&R may refer to:

Arts, entertainment, and media[edit]

Music[edit]

Periodicals[edit]

Other media[edit]

Businesses[edit]

Firearms[edit]

Language[edit]

  • Ár, written "ᛅ", a rune of the Younger Futhark alphabet
  • Arabic language (ISO 639 alpha-2 language code AR)

Mathematics, science, and technology[edit]

Computing[edit]

Biology and medicine[edit]

Mathematics[edit]

Physics and chemistry[edit]

Other uses in mathematics, science, and technology[edit]

Military[edit]

Places[edit]

Other uses[edit]