Word.ws English Dictionary

ao

/eɪ ˈəʊ/

ao is the initialism of amongst/among/and others.

Noun (1)

ao (uncountable)

  1. grue ("blue or green", considered as one color)

Proper noun (1) capitalized: AO

AO

  1. (abbreviation, initialism) Initialism of Arctic oscillation.
  2. (abbreviation) Abbreviation of Australian Open, a major tennis tournament, part of the Grand Slam.
  3. (abbreviation, initialism) Initialism of Anarchy Online.
  4. (abbreviation, initialism) Initialism of Annoying Orange, an Internet-based cartoon series.

Noun (2) capitalized: AO

AO (plural AOs)

  1. (abbreviation) Abbreviation of autonomous oblast.
  2. (abbreviation) Abbreviation of autonomous okrug.
  3. (abbreviation) Abbreviation of area of operations.
  4. (abbreviation) Abbreviation of alpha and omega.
  5. (abbreviation, initialism, physical, quantum mechanics) Initialism of atomic orbital.
  6. (Navy, US, abbreviation) Abbreviation of auxiliary oiler.
  7. (Hong-Kong, abbreviation, initialism) Initialism of administrative officer.

Adjective capitalized: AO

AO (not comparable)

  1. (abbreviation, initialism) Initialism of adults only.

Noun (3) capitalized: Ao

Ao pl (plural only)

  1. (plural, plural-only) A tribe living primarily in the state of Nagaland in India.

Proper noun (2) capitalized: Ao

Ao

  1. Their language, belonging to the Tibeto-Burman language family.

Proper noun (3) capitalized: Ao

Ao

  1. A river in Zhejiang, China.
    • To produce leather goods, plants dumped an estimated 8,000 tonnes of waste a day into the Ao River, transforming its once-clear waters into a foul-smelling cesspool.2004 July 3, Ray Cheung, “Polluted pig-leather capital is cleaned up”, in South China Morning Post, →ISSN, →OCLC, archived from the original on 24 Nov 2023
  2. A river in Fujian, China.
    • The Ao River currently provides water for Lianjian^([sic – meaning Lianjiang]) County, irrigation for agriculture, water to villages for drinking, to fish farms, animal farms, and industries. Before the construction of the Shanzai dam the dry season flow in the Ao River at the water works at...1998, Fuzhou Water Supply and Wastewater Treatment Project in the People's Republic of China, Asian Development Bank, →OCLC, pages 10, 17
    • Chiang said her father was born in Lianjiang, and he knew very well that if there was no dike, places like Gui'an and Taoyuan villages would be flooded every year.
      "Just a while ago, when it rained heavily, waterlogging can be seen in many places. At that time, I was looking at the course of the...[2021 December 12, “Three ordinary Taiwan locals who made new lives across the Strait”, in huaxia, editor, Xinhua News Agency, archived from the original on 08 Apr 2023

Proper noun (4) capitalized: Ao

Ao (plural Aos)

  1. A surname from Chinese.

Proper noun (5) capitalized: Ao

Ao (plural Aos)

  1. (Macau) A surname from Chinese.

Noun (4) capitalized: Ao

Ao

  1. (abbreviation) Abbreviation of aorta.

Preposition capitalized: aO

aO

  1. (abbreviation) Abbreviation of about.

Synonyms of ao

Forms of ao

Noun
pluralAOs
Proper noun
pluralAos

Origin of ao

Borrowed from Japanese 青(あお) (ao).

From atonal romanization of the Mandarin pronunciation of Chinese 鰲 /鳌 (Áo) and 敖 (Áo).

From atonal romanization of the Mandarin pronunciation of Chinese 敖 (Áo).

Words formed from ao

Phrases with ao

Questions about ao

What does ao mean?
Ao means grue ("blue or green", considered as one color).
What is ao the initialism of?
Ao is the initialism of amongst/among/and others.
What part of speech is ao?
Ao can be a noun, a proper noun, an adjective or a preposition.
How do you pronounce ao?
Ao is pronounced /eɪ ˈəʊ/.
What is the plural of ao?
The plural of ao is AOs.

Words near ao in the dictionary

  1. anāgāmi
  2. anāgāmis
  3. Anāl
  4. Anāls
  5. anœstrus
  6. ao
  7. ao dai
  8. ao dais
  9. AO3
  10. AOA
  11. AOABH

Source and license

Adapted from Wiktionary: ao (page history and authors); AO (page history and authors); Ao (page history and authors); aO (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: “ao.” Word.ws, https://word.ws/ao. Based on Wiktionary, CC BY-SA 4.0.