Dual or Duals may refer to:
Paired/two things
*
Dual (mathematics), a notion of paired concepts that mirror one another
**
Dual (category theory), a formalization of mathematical duality
*** see more cases in
:Duality theories
*
Dual (grammatical number), a grammatical category used in some languages
*
Dual county
Dual county ( ga, Contae déach) is a term used in Gaelic games to describe a county that competes at a similar level in both hurling and Gaelic football. For example, Dublin play in Division 1 in both the NHL and NFL, while Laois compete in ...
, a Gaelic games county which in both Gaelic football and hurling
*
Dual diagnosis, a psychiatric diagnosis of co-occurrence of substance abuse and a mental problem
* Dual fertilization, simultaneous application of a P-type and N-type
fertilizer
*
Dual impedance, electrical circuits that are the dual of each other
*
Dual SIM cellphone supporting use of two SIMs
*
Aerochute International Dual a two-seat Australian powered parachute design
Acronyms and other uses
*
Dual (brand), a manufacturer of Hifi equipment
*
DUAL (cognitive architecture), an artificial intelligence design model
*
DUAL algorithm, or diffusing update algorithm, used to update Internet protocol routing tables
* Dual language, alternative spelling of the Australian Aboriginal
Dhuwal language
*
DUAL table, a special one-row and one-column database table
*
Dual-Ghia, US-brand of luxury-car of the late 1950s
Media
*
''Dual'' (2008 film), a 2008 western drama film
*
''Dual'' (2022 film), a 2022 science fiction thriller film
*
"Dual" (''Heroes''), an episode of ''Heroes''
*
Dual! Parallel Trouble Adventure, an anime series
*
''Dual'' (album), an album of traditional Scottish and Irish music recorded by Éamonn Doorley, Muireann Nic Amhlaoibh, Julie Fowlis and Ross Martin, released 2008
*
''Dual'' (EP), a 2013 EP by Sampha
* ''
Duals'', an album by U2
*
The Duals
The Duals were an American surf rock duo formed in Los Angeles, California, in 1961. Much of the collaboration's music capitalized on the style of music popularized in Southern California in the early 1960s. They reached the national charts with ...
, American duo
See also
*
Duality (disambiguation)
*
Duel (disambiguation), a homonym
*
*
*
Double (disambiguation)
*
Duo (disambiguation)
*
Pair (disambiguation)
Pair or PAIR or Pairing may refer to:
Government and politics
* Pair (parliamentary convention), matching of members unable to attend, so as not to change the voting margin
* ''Pair'', a member of the Prussian House of Lords
* ''Pair'', the Frenc ...
*
Twin (disambiguation)
A twin is one of two offspring produced in the same pregnancy.
Twin may also refer to:
* Twin, Alabama, a city in the United States
* Twin, Belgium, Walloon name of the Belgium city of Thuin
* Twin (production team), a Swedish record production ...
{{disambiguation