OA 587922 225799980 2008-07-15T13:37:38Z 64.128.165.40 '''OA''', '''Oa''', or '''oa''' may refer to: * [[Length overall]] (also o/a, o.a. or oa), an abbreviation for overall, used when describing the length of a ship. * an abbreviation for '''on or about''' used in US military and government correspondence, as in "it happened o/a 22:30". * an abbreviation for '''operating as''', e.g. as in when one airline company operates a flight on behalf of another. * [[Oa (digraph)]], a digraph * [[Oa]], a fictional planet in DC Comics * [[Obavještajna agencija]], the Croatian Intelligence Agency * [[Offline Achievements]], a program written by ConsoleHeroes.com for managing Xbox 360 Achievements offline * [[Oficina Anticorrupción]], an Argentine law enforcement agency * [[Old Alleynian]], an old boy of Dulwich College * [[Oleic acid]], a monounsaturated omega-9 fatty acid * [[Olympic Airlines]], the IATA code * [[Open access]], the free online availability of digital content * [[Operational amplifier]] in electronics * Order of Appearance, a less-used synonym for [[Order of battle]] * [[Order of the Arrow]], the honor society of the Boy Scouts of America * [[Order of Australia]], an Australian formal honour * [[Original Advocacy]], in the National Forensics League * [[Orion's Arm]], a collaborative, hard sci-fi world-building project * [[Osteoarthritis]], a degenerative disease of joints * [[Overeaters Anonymous]], for compulsive overeaters * [[ONS_coding_system#Authorities.2C_wards.2C_and_census_areas|Output Area]], an area of approximately 100 households derived from the UK Census * [[Oxford Archaeology]], formerly known as "Oxford Archaeological Unit" {{disambig}} [[de:OA]] [[el:Ο.Α.]] [[fr:OA]] [[it:OA]] [[ja:OA]] [[ko:OA]] [[no:OA]] [[nn:OA]] [[fi:Oa]]