OA

See also: oa, .o'a, oa', óa, ōa, o.a., and o. Ä.

English

Initialism

OA

  1. On or About
  2. Open Access
  3. Organizing Authority (alterante spelling: Organising Authority)

Proper noun

OA

  1. (Scouting) Order of the Arrow

Derived terms

Anagrams

Spanish

Abbreviation

OA

  1. Oaxaca (Mexican state)
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