Dao, Dão or DAO may refer to: *

Tao ''Tao'' or ''Dao'' is the natural order of the universe, whose character one's intuition must discern to realize the potential for individual wisdom, as conceived in the context of East Asian philosophy, East Asian religions, or any other phil ...

(Chinese: "The Way" 道), a philosophical concept *

Dao (Chinese sword) ''Dao'' (pronunciation: , English approximation: , Chinese: 刀; pinyin: ''dāo'') are single-edged Chinese swords, primarily used for slashing and chopping. The most common form is also known as the Chinese sabre, although those with wider b ...

(刀), a type of Chinese sword *

Dao (Naga sword) ''Dao'' is the sword of the Naga people and Mizo people of Northeastern India, mainly in the Indian states of Nagaland, Mizoram, Manipur and Assam. The sword, with its wooden hilt, and unique square form is used for digging as well as used in h ...

, a weapon and a tool of Naga people

People and language

Yao people The Yao people (its majority branch is also known as Mien; ; vi, người Dao) is a government classification for various minorities in China and Vietnam. They are one of the 55 officially recognised ethnic minorities in China and reside in t ...

, a minority ethnic group of Vietnam * Dao language (Papuan), Indonesia *

Dao language (China) The Dao language (; Daohua) is a Chinese–Tibetan mixed language or creolized language of Yajiang County, Sichuan, China. Word order is SOV as in Tibetan (Yeshes Vodgsal Atshogs 2004:6), while the lexicon consists of words derived from both ...

Dao (surname) Dao is a surname in Canada, India, the Philippines, Hong Kong (R.China), mainland People's Republic of China, Singapore, Scotland, UK, Portugal, Native American Indian, and Vietnam Persons with the surname * Đào Cam Mộc, imperial official inv ...

(Đào), a Vietnamese surname * Dao (''Dungeons & Dragons''), a type of genie in the game ''Dungeons & Dragons'' * Dão (footballer) (born 1984), Brazilian football defender

Places

Dao (country subdivision) A circuit ( or ) was a historical political division of China and is a historical and modern administrative unit in Japan. The primary level of administrative division of Korea under the Joseon and in modern North and South Korea employs the ...

(Dào), historical political divisions in China translated as "circuits" *

Dao (state) Dao () was a Chinese vassal state during the Zhou Dynasty (1046 – 221 BCE) located in the southern part of Runan County, Henan. Dao existed in the shadow of the powerful neighbouring State of Chu which was held in check by the equally powerful ...

, a historical state during the Zhou dynasty *

Dao, Capiz Dao, officially the Municipality of Dao ( Capiznon/ Hiligaynon: ''Banwa sang Dao''; tl, Bayan ng Dao), is a 4th class municipality in the province of Capiz, Philippines. According to the 2020 census, it has a population of 33,842 people. Dao is ...

, Philippines *

Dao County Dao County () is a county in Hunan Province, China, it is under the administration of Yongzhou prefecture-level City. Located on the southern margin of the province, it is adjacent to the northeastern border of Guangxi. The county borders to the ...

, in Yongzhou, Hunan, China *

Dão DOC Dão is a Portuguese wine region situated in the Região Demarcada do Dão with the Dão-Lafões sub region of the Centro, Portugal. It is one of the oldest established wine regions in Portugal. Dão wine is produced in a mountainous region with a ...

, a wine region in Portugal *

Dão River Dão () is a Portuguese river that originates in the plateau regions of Trancoso-Aguiar da Beira in the Eirado parish, Aguiar da Beira Municipality, Guarda District, and varies between in elevation. It flows in a general northeast–southwe ...

, a river in Portugal

Science and technology

Biology

D-amino acid oxidase D-amino acid oxidase (DAAO; also OXDA, DAMOX) is an enzyme with the function on a molecular level to oxidize D-amino acids to the corresponding α-keto acids, producing ammonia and hydrogen peroxide. This results in a number of physiological e ...

, a peroxisomal enzyme *

Diamine oxidase Diamine oxidase (DAO), also known "amine oxidase, copper-containing, 1" (AOC1), formerly called histaminase, is an enzyme () involved in the metabolism, oxidation, and inactivation of histamine and other polyamines such as putrescine or spermid ...

, an enzyme also known as histaminase involved in the metabolism of histamine * D-aspartate oxidase, in enzymology * ''

Dracontomelon dao ''Dracontomelon dao'', the Argus pheasant-tree, is a tree in the family Anacardiaceae, native to tropical Asia. Description ''Dracontomelon dao'' grows as a tropical canopy tree distinguished mostly by its height (reaching up to about ), for it ...

'', a species of tropical canopy tree known as ''dao'' in Filipino

Computing

Data access object In software, a data access object (DAO) is a pattern that provides an abstract interface to some type of database or other persistence mechanism. By mapping application calls to the persistence layer, the DAO provides data operations without expo ...

, a design pattern used in object-oriented software engineering *

Jet Data Access Objects Jet Data Access Objects is a general programming interface for database access on Microsoft Windows systems, primarily for Jet and ACE databases. History DAO were originally called VT Objects. DAO 1.0 came up in November 1992 as part of Acces ...

, a general programming interface for database access on Microsoft Windows systems * Disk-at-Once, an optical disc recording mode * Decentralized autonomous organization, an organization that is run through rules encoded as computer programs called smart contracts

Other

De-asphalted oil A de-asphalter is a unit in a crude oil refinery or bitumen upgrader that separates asphalt from crude oil or bitumen. The de-asphalter unit is usually placed after the vacuum distillation tower. It is usually a solvent de-asphalter unit, SDA. Th ...

, a crude oil refinery process stream *

Double action only A trigger is a mechanism that actuates the function of a ranged weapon such as a firearm, airgun, crossbow, or speargun. The word may also be used to describe a switch that initiates the operation of other non-shooting devices such as a trap ...

, a trigger mechanism for semi-automatic firearms

Organizations

* Decentralized autonomous organization, a type of organization *

The DAO (organization) The DAO, whose logo featured a capital letter Đ, was a digital decentralized autonomous organization and a form of investor-directed venture capital fund. After launching in April 2016 via a token sale, it became one of the largest crowdfun ...

, a former digital organization established in 2016 *

Defence Acquisition Organisation The Capability Acquisition and Sustainment Group (CASG) is an organisation within the Australian Department of Defence, responsible for acquisition and supply chain management of military equipment and materiel including aircraft, ships, vehic ...

, the former name of the Australian Defence Materiel Organisation *

Dominion Astrophysical Observatory The Dominion Astrophysical Observatory, located on Observatory Hill, in Saanich, British Columbia, was completed in 1918 by the Canadian government. The Dominion architect responsible for the building was Edgar Lewis Horwood. The main instrument ...

in Saanich, British Columbia, Canada *

Daallo Airlines Daallo Airlines is a Somali-owned airline based at Dubai Airport Free Zone in Al Garhoud, Dubai, United Arab Emirates. With its main hub at the Djibouti–Ambouli International Airport, the airline operates scheduled services in the Horn of Af ...

(ICAO code)

Arts and entertainment

* ''Dao'' (film), a film by Tsui Hark * ''Dao'' (game), an abstract strategy game * ''DAO'' (album), a 1996 album by jazz saxophonist David S. Ware

Other uses

* Defense Attaché Office, the office for military matters at embassies; for example see Embassy of the United States, Tel Aviv