UA, U-A, Ua, uA, or ua may refer to:

Arts and entertainment

Gaming

* '' Unearthed Arcana'', a Dungeons & Dragons sourcebook * ''

Unknown Armies ''Unknown Armies'' is an occult-themed roleplaying game by John Scott Tynes and Greg Stolze, published by Atlas Games. The first edition was published in 1998, with the second and third editions being released in 2002 and 2017 respectively. The ...

'', a role playing game * ''

Urban Assault ''Urban Assault'' is a 3D combined first-person shooter and real-time strategy computer game developed by the German company TerraTools and published by Microsoft in the year 1998. It was the third strategy title that was directly published by ...

'', a first-person shooter and real-time strategy computer game

Music

* Ua (born 1972), a Japanese singer-songwriter * '' United Abominations'', an album by the band Megadeth

Other uses in arts and entertainment

* United Artists, a film studio * ''

The Umbrella Academy ''The Umbrella Academy'' is an American comic book series created and written by Gerard Way and illustrated by Gabriel Bá. The first six-issue limited series, '' The Umbrella Academy: Apocalypse Suite,'' was released by Dark Horse Comics betwee ...

'', a graphic novel by Gerard Way

Businesses and organizations

* ''Uitgesloten aansprakelijkheid'' (lit. "excluded liability"), a Dutch form of cooperative, which has legal personality, but with members (at least two on incorporation) rather than shareholders, with no capital and therefore no minimum capital or equity requirement, and with articles of association that can be worded such that members are not liable for the actions performed by the Cooperative (or losses suffered), usually used as a holding or finance company *

ultrAslan ultrAslan is a football firm associated with Galatasaray S.K. (football), Galatasaray S.K. The firm was founded on 20 January 2001, after various smaller groups of fans decided that, Galatasaray, which could be seen as a European top club after ...

, a fan group of the Galatasaray Spor Kulübü football team * Under Armour, an American clothing brand *

Union Association The Union Association was a league in Major League Baseball which lasted for just the 1884 season. St. Louis won the pennant and joined the National League the following season. Seven of the twelve teams who were in the Association at some poi ...

, a baseball league of 1884 * United Airlines, a major American airline headquartered in Chicago, Illinois (whose IATA airline designator is also ''UA'') * United Artists, a film studio *

United Association The United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, commonly known as the United Association (UA), is a labor union which represents workers in the plumbing and pipefitti ...

, a plumbing and pipefitting labor union in the U.S. and Canada * Universal Audio (company), a designer and manufacturer of audio signal processing hardware and software * University Alliance, a lobbying group of British universities *

UP Aerospace UP Aerospace, Inc. is a private spaceflight corporation headquartered in Denver, Colorado. UP Aerospace provides sub-orbital transportation for corporate, military and educational payloads, via their SpaceLoft XL sounding rocket launch vehicles ...

, a private spaceflight company based in Denver, Colorado

Military uses

* German submarine ''UA'', a German submarine of the Second World War * German ''Type UA'' submarine, of the First World War * , a World War I submarine of Imperial Germany * Unauthorized Absence, a key term for the abandonment of a duty or post without permission (United States) *

Future Force Unit of Action The Future Force unit of action (UA) was designed by the United States Army’s tactical war-fighting echelon. Although optimized for offensive operations, the Future Combat Systems Future Combat Systems (FCS) was the United States Army's princ ...

, a proposed US Army tactical unit

Places

* ''ua'', ISO country code for Ukraine * , Ligurian for the Italian commune of Ovada *

Upper Arlington, Ohio Upper Arlington, often known by its initials U.A., is a city in Franklin County, Ohio, United States, on the northwest side of the Columbus metropolitan area. The Old Arlington neighborhood is listed on the National Register of Historic Places. ...

Schools

* University of Akron, a public research university in Akron, Ohio, United States * University of Alabama, a public research university located in Tuscaloosa, Alabama, United States * University of Alaska system, a university system in Alaska created in 1975 :* University of Alaska Anchorage, the largest university by enrollment in the system :* University of Alaska Fairbanks, the first university and flagship (known from 1925 to 1975 simply as the University of Alaska) :*

University of Alaska Southeast The University of Alaska Southeast (UA Southeast, Alaska Southeast, or UAS) is a public university with its main campus in Juneau, Alaska and extended campuses in Sitka and Ketchikan. It is part of the University of Alaska System and was estab ...

, located in the capital city of

Juneau The City and Borough of Juneau, more commonly known simply as Juneau ( ; tli, Dzánti K'ihéeni ), is the capital city of the state of Alaska. Located in the Gastineau Channel and the Alaskan panhandle, it is a unified municipality and the se ...

, and the smallest by enrollment * University of Alicante, a public university in Alicante, Spain * University of Antwerp, one of the major Belgian universities located in the city of Antwerp * University of Arizona, a public research university in Tucson, Arizona, United States * University of Arkansas, a public, co-educational, land-grant, space-grant, research university in Fayetteville, Arkansas, United States

Science and technology

Biology and medicine

* Unstable angina, a type of heart disease * Uric acid, a metabolic compound * Urinalysis (also U/A), a set of medical diagnostic tests performed on urine

Computing and telecommunications

.ua .ua is the Internet country code top-level domain (ccTLD) for Ukraine. To register at the second-level (example) domainname.ua, possession of the exact trademark (matching the domain name) is required. It is not required for third-level domain ...

, the Internet country code top-level domain (ccTLD) for Ukraine *

User agent In computing, a user agent is any software, acting on behalf of a user, which "retrieves, renders and facilitates end-user interaction with Web content". A user agent is therefore a special kind of software agent. Some prominent examples of us ...

, a computer networking software class *

User Assistance User assistance is a general term for guided assistance to a user of a software product. The phrase incorporates all forms of help available to a user. Assistance can also automatically perform procedures or step users through the procedure, depen ...

, computer programme manuals and documentation *

Universal Acceptance Universal Acceptance (UA) is a term coined by technologist Ram Mohan in 2001 to represent the principle that every top-level domain (TLD) should function within all applications regardless of script, number of characters, or how new it is. Historic ...

, a term to represent the principle that accepts all the email addresses with every

Top-level domain A top-level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level domain names are installed in the root zone of the name space. For all domains in ...

(TLD).

Other uses in science and technology

* Unmanned aircraft or unmanned aerial vehicle (UAV), an aircraft without a human pilot aboard (commonly known as a drone) * Microampere (uA, properly µA), a unit of electric current defined as one-millionth of an

ampere The ampere (, ; symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units. is the unit of electric current in the International System of Units (SI). One ampere is equal to elect ...

* UA, the product of a heat exchanger's Overall Heat Transfer Coefficient ''U'' and its active exchange area ''A'' in thermodynamics

Other uses

* Unit of account, a nominal monetary unit of measure or currency used to represent the real value (or cost) of any economic item (in economics), or the words that are used to describe the specific assets and liabilities that are reported in financial statements rather than the units used to measure them (in financial accounting) * Unitary authority, a type of local authority that has a single tier and is responsible for all local government functions within its area, or performs additional functions which elsewhere in the relevant country are usually performed by national government or a higher level of sub-national government * Urban area, a human settlement with high population density and infrastructure of built environment