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ARB, ARb or arb may refer to:


Brands and enterprises[edit]


Finance, economics, and business[edit]



  • Arb (gesture), a system of hand gestures used most notably on the Chicago Mercantile Exchange
  • Akawaio language (SIL code), a Cariban language of Guyana


  • Administrative Review Board, a military body that conducts annual hearings to determine whether captives held in the Guantanamo Bay detention camps continue to represent a threat to the USA's national security
  • Air Reserve base, a United States Air Force base converted for use by the Reserves

Science, engineering, and health care[edit]

  • Accumulative roll bonding, a severe plastic deformation process
  • Angiotensin II receptor blocker, a medication for treating high blood pressure
  • Anti-roll bar (roll bar, anti-sway bar, sway bar, stabilizer bar), part of many automobile suspensions that helps reduce the body roll of a vehicle during fast cornering or over road irregularities
  • ARB Project, for phylogenetic analysis
  • Arbitrary unit, or procedure defined unit (p.d.u.) is a relative unit of measurement to show the ratio of amount of substance, intensity, or other quantities, to a predetermined reference measurement
  • Royal Academies for Science and the Arts of Belgium (Académie Royal de Belgique), an association which promotes and organises science and the arts



Other uses[edit]