OA
Wikimedia disambiguation page
OA, O.A., Oa, or oa may refer to:
Arts and entertainment
Oa (comics), a fictional planet in the DC Comics universe
The OA, a television series
OpenArena, a video game
Opie and Anthony (often "O&A"), a radio show
Oriental Adventures, a Dungeons & Dragons sourcebook
Orion's Arm, a science fiction project
Businesses and organisations
Obavještajna agencija, the Croatian Intelligence Agency
Office administration
Oficina Anticorrupción, an Argentine law enforcement agency
Olympic Air (IATA code OA)
Opera Australia, an opera company
Opportunitas aequa, a Canadian organization
Overeaters Anonymous
Oxford Academy (California), a high school
Orbital ATK, an aerospace company
People
Ma'am OA, nickname of Andrea Veneracion, founder of the Philippine Madrigal Singers
Oskar Andersson, Swedish cartoonist who uses the pen name O.A.
Places
Oa (Attica), a deme of ancient Attica
Ocean Acres, New Jersey, United States
Orakzai Agency, Pakistan
The Oa, Scotland, United Kingdom
Oa (DC Comics), the base of two fictional groups of characters, the Guardians of the Universe and the Green Lantern Corps
Honors
Order of Australia, a formal honour
Order of the Arrow, the honor society of Scouting America
Science and technology
Office automation
Oleic acid, a fatty acid
Open access, the free online availability of digital content from scholarly sources
Operational amplifier, an electronic component
Operational analysis, more generally called "operational research", a branch of applied mathematics
Osteoarthritis, a disease
Length overall (also o/a, o.a.
This brief starts where responsible research should: with the source description of “OA” as wikimedia disambiguation page. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as wikimedia disambiguation page. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 15, 2026. The linked authority identifier is Q257278. None of the 0 selected statements returned an explicit reference.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “OA”, its source revision and the description used here.
- Expand the search: follow OA primary sources, OA archive and Wikimedia research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “OA”?
- Which institution is responsible for the underlying evidence?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “OA” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.