Word.ws English Dictionary

OA

OA is the initialism of on or about.

OA is the initialism of open access.

OA is the initialism of organizing authority.

OA is the initialism of office assistant.

OA is the initialism of output area.

OA is the initialism of online assessment.

Meaning of on or about

Preposition

on or about

  1. approximately.

Meaning of open access

Noun

open access (uncountable)

  1. A set of principles and practices through which research outputs are distributed online, free of access charges or other barriers.
    • The amenities of the institute include a well-arranged open-access library of 18,000 volumes, and a small but valuable reference library of railway literature; the present writer is Librarian.1944 May and June, Arthur B. Longbottom, “The Derby Railway Institute”, in Railway Magazine, page 149
    Synonyms:
    OA
  2. Public access to infrastructure, such as railways.
    • Dominguez-González explained: "The Spanish market is no longer a monopolistic one, and there is great interest among both the existing open access operators and potential future ones in providing services on other lines."2023 July 26, Ben Jones, “EU open access growth offers pointers for UK hopefuls”, in RAIL, number 988, pages 32–33

Synonyms of OA

Forms of OA

comparativemore OA
superlativemost OA

Words formed from OA

Phrases with OA

Questions about OA

What is OA the initialism of?
OA is the initialism of on or about.

Words near OA in the dictionary

  1. O/RM
  2. O/W
  3. O/Ws
  4. o11y
  5. O2
  6. OA
  7. OAB
  8. OABS
  9. OAC
  10. Oacoma
  11. OACs

Source and license

Adapted from Wiktionary: OA (page history and authors); on or about (page history and authors); open access (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “OA.” Word.ws, https://word.ws/oa. Based on Wiktionary, CC BY-SA 4.0.