dual
Part of speech: adj
noun
verb
Morphological type: simple
Topics: category-theory
computing
engineering
geometry
government
grammar
hobbies
human-sciences
lifestyle
linear-algebra
linguistics
martial-arts
mathematics
military
natural-sciences
physical-sciences
physics
politics
sciences
sports
war
wrestling
Etymology: PIE word
 *dwóh₁
Borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.
Inflected forms:
form: du.
pos: adj
tags: alternative
abbreviation
form: duals
pos: noun
tags: plural
form: du.
pos: noun
tags: alternative
abbreviation
form: duals
pos: verb
tags: present
singular
third-person
form: dualing
pos: verb
tags: US
participle
present
form: dualling
pos: verb
tags: UK
participle
present
form: dualed
pos: verb
tags: US
participle
past
form: dualed
pos: verb
tags: US
past
form: dualled
pos: verb
tags: UK
participle
past
form: dualled
pos: verb
tags: UK
past
form: du.
pos: verb
tags: alternative
abbreviation
Senses:
gloss: Characterized by having two (usually equivalent) components.
pos: adj
tags: not-comparable
examples: a dual-motor vehicle
gloss: Pertaining to two, pertaining to a pair of.
pos: adj
tags: not-comparable
examples: dual engine failure
dual citizenship
Both Deborah and Samuel held dual roles as judges and prophets.
And some Asian countries are tightening their immigration laws. Japan reinforced its strict stance in January when a court upheld the country’s ban against dual citizenship, rejecting a lawsuit filed by Japanese citizens living in Europe.
gloss: Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes.
pos: adj
tags: not-comparable
examples: Modern Arabic displays a dual number, as did Homeric Greek.
gloss: Exhibiting duality.
pos: adj
tags: not-comparable
gloss: Being the space of all linear functionals of (some other space).
pos: adj
tags: not-comparable
examples: Accordingly, a hyperplane in the sample space is dual to a subspace in the variable space.
gloss: Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms.
pos: adj
tags: not-comparable
examples: Every category is dual to its own dual, so if a statement holds in all categories so does its dual.
gloss: Of an item that is one of a pair, the other item in the pair.
pos: noun
gloss: Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
pos: noun
examples: The octahedron is the dual of the cube.
gloss: The dual number.
pos: noun
gloss: Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space.
pos: noun
gloss: A head-to-head match or meet between two teams, such as two high schools or colleges.
pos: noun
examples: Wrestling duals and meets take place at the Wisconsin Field House. There are no advance single event ticket sales.
But Dave agreed to participate in the Bulgarian dual, and that trapped me into having to wrestle, too.
Early in 2021, she became the first female to compete and win a match at the Ter-Hark Cup wrestling dual, helping her squad to victory.
gloss: To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway.
pos: verb
tags: transitive
examples: I have to declare an interest and I do so with some ambivalence because if the road is dualled it is likely to take half of my front garden.
The power generation and propulsion systems are dualled to accommodate component failure and maintain propulsion at reduced speed should any part of one system be lost.
The investment will allow Nexus to increase service frequencies, reduce journey times, and improve reliability by dualling three sections of line between Pelaw and South Shields.
Synonyms: binary
double
dual
twin
twofold
Related words: unal
duel
Derived words: bidual
codual
coduality
dual audio
dual-band
dual boot
dual-boot
dual-braked
dual cab
dual-capable aircraft
dual career couple
dual citizen
dual citizenship
dual-clutch gearbox
dual-coding theory
dual control
dual degree
dual earner
dual earner couple
dual earner family
dual economy
dual-edged sword
dual-energy X-ray absorptiometry
dual-exceptional
dual federalism
dual-frequency
dual graph
dual heritage
dual house
dualic
dualie
dualisation
dualism
dualist
dualistic
duality
dualization
dualize
dual-lens reflex
dually
dual mandate
dual meet
dual mode
dual-mode
dual monastery
dual nationality
dual offence
dual phenomenology
dual photon absorptiometry
dual polyhedron
dual-ported
dual primary
dual-purpose
dual resident
dual school
dual-sector model
dual sensory impaired
dual-SIM
dual SIM
dualski
dual tone multi-frequency
dual-tropic
dual-use
dual-use research of concern
dual-voltage
dual wield
duloxetine
Hodge dual
isodual
nondual
non-self-dual
predual
pseudodual
categorical dual
first-person dual
second-person dual
self-dual
third-person dual
Translations:
lang: Arabic
word: مُثَنًّى
roman: muṯannan
lang: Arabic
word: دَبَل
roman: dabal
lang: Bulgarian
word: двоен
roman: dvoen
lang: Catalan
word: doble
lang: Dutch
word: dubbel-
lang: Esperanto
word: duobla
lang: Finnish
word: kaksi-
lang: Finnish
word: kaksinkertainen
lang: French
word: double
lang: Indonesian
word: ganda
lang: Manx
word: dooblit
lang: Polish
word: podwójny
lang: Portuguese
word: duplo
lang: Russian
word: двойно́й
roman: dvojnój
lang: Russian
word: двоя́кий
roman: dvojákij
lang: Russian
word: сдво́енный
roman: sdvójennyj
lang: Slovene
word: dvojen
lang: Spanish
word: dual
lang: Swedish
word: dubbel-
lang: Swedish
word: två-
lang: Turkish
word: çift
lang: Welsh
word: deuol
lang: Welsh
word: dwbl