Dao, Dão or DAO may refer to: *

Tao The Tao or Dao is the natural way of the universe, primarily as conceived in East Asian philosophy and religion. This seeing of life cannot be grasped as a concept. Rather, it is seen through actual living experience of one's everyday being. T ...

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

Dao (Chinese sword) ''Dao'' (pronunciation: , English approximation: , Chinese language, Chinese: 刀; pinyin: ''dāo''; jyutping: ''dou1'') are single-edged Chinese swords, primarily used for slashing and chopping. They can be straight or curved. The most common ...

(刀), a type of Chinese sword *

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

, a weapon and a tool of Naga people

People and language

Yao people The Yao people () or Dao () is a classification for various ethnic minorities in China and Vietnam. Their majority branch is also known as Mien. They originated in the areas around Changsha, which today is the capital of Hunan province. They s ...

, a minority ethnic group of Vietnam * Dao language (Papuan), Indonesia * Dao language (China) * Dao (surname) (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) (Dào), historical political divisions in China translated as "circuits" * Dao (state), a historical state during the Zhou dynasty *

Dao, Capiz Dao, officially the Municipality of Dao ( Capiznon/ Hiligaynon: ''Banwa sang Dao''; ), is a municipality in the province of Capiz, Philippines. According to the 2020 census, it has a population of 33,842 people. Dao is from Roxas City. Histor ...

, 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, a wine region in Portugal *

Dão River Dão () is a Portugal, 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&nda ...

, a river in Portugal

Science and technology

Biology

D-amino acid oxidase D-amino acid oxidase (DAAO; also OXDA or 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 physiologi ...

, a peroxisomal enzyme * Diamine oxidase, 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, ''Pacific walnut'', ''Papuan walnut'', ''New Guinea walnut'', ''paldao'' or simply ''dao'', is a tree in the family Anacardiaceae, native to tropical Asia. Description ''Dracontomelon dao'' grows a ...

'', 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 ex ...

, a design pattern used in object-oriented software engineering * Jet Data Access Objects, a general programming interface for database access on Microsoft Windows systems * Disk-at-Once, an optical disc recording mode *

Decentralized autonomous organization A decentralized autonomous organization (DAO), sometimes called a decentralized autonomous corporation (DAC), is an organization managed in whole or in part by decentralized computer programs, with voting and finances handled through a decent ...

, an organization that is run through rules encoded as computer programs called smart contracts

Other

* De-asphalted oil, 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 tr ...

, a type of trigger mechanism for handguns

Organizations

, a type of organization *

The DAO (organization) The DAO 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 crowdfunding campaigns in history, but it ceased activ ...

, a former digital organization established in 2016 * Defence Acquisition Organisation, the former name of the Australian Defence Materiel Organisation *

Dominion Astrophysical Observatory The Dominion Astrophysical Observatory, located on Observatory Hill (Saanich), Observatory Hill, in Saanich, British Columbia, was completed in 1918 by the Canadian Government, Canadian government. The Dominion architect responsible for the bui ...

in Saanich, British Columbia, Canada * Daallo Airlines (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