arb

ARB may stand for:

In Medicine:

• Angiotensin receptor blocker (antagonist), a medication for treating high blood pressure

In the Military:

• Administrative Review Board, conduct 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
• A hull classification symbol, used for United States Navy battle damage repair ships

In Politics:

• Armee Revolutionnaire Bretonne (Breton Revolutionary Army), an armed Breton Nationalist secret society that has attacked France.

In Architecture:

• Architects Registration Board, for which see Architects Registration in the United Kingdom

In Commerce:

• Automated Recurring Billing

In Science, Technology, and Engineering:

• Arbitrary unit
• Anti-roll bar, also known as a Sway bar
• ARB Project, for phylogenetic analysis
• Arbitron, a radio audience research company
• OpenGL Architecture Review Board, a consortium previously governing OpenGL
• ARB OpenGL Shader Assembly Language

In Transportation and Geography:

• Akawaio language (SIL code), a Cariban language of Guyana
• Several transportation facilities in Ann Arbor, Michigan:
  • Ann Arbor Municipal Airport (IATA airport code)
  • Ann Arbor train station (Amtrak station code)
• Arab States, UNESCO region
• Arbroath railway station, United Kingdom (National rail code)
• Arth-Rigi-Bahn, a Swiss mountain railway

In Government:

• Administrative Review Board (Labor) - a unit of the U.S. Department of Labor
• Air Resources Board, California Environmental Protection Agency

In Finance, Economics, or Business, "ARB" or "arb" may also be an abbreviation for:

• Arbitrage
• Arbitrage betting
• Arbitrary
• Arbitration
• Arb (gesture), a system of hand gestures used most notably on the Chicago Mercantile Exchange

In Music:

• ARB (band), a Japanese rock band

In Sports:

• Australian Racing Board, the peak national administration body for Thoroughbred racing in Australia

In Arboriculture:

• ArbWiki, abbreviation for all subjects to do with Arboriculture (such as Arborist)

In Communities or Subdivisions governed by a Covenant:

• ARB stands for Architectural Review Board, usually a volunteer group that evaluates changes to a house or property that the homeowner wishes to make, to ensure that the articles of the Covenant are not violated

In Radio:

• American Research Bureau

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