Dictionary Thesaurus Word Dynamo Quotes Reference Translator Spanish

dual

[doo-uhl, dyoo-]

adjective

of, pertaining to, or noting two.

composed or consisting of two people, items, parts, etc., together; twofold; double: dual ownership; dual controls on a plane.

having a twofold, or double, character or nature.

Grammar. being or pertaining to a member of the category of number, as in Old English, Old Russian, or Arabic, that denotes two of the things in question.

noun Grammar.

the dual number.

a form in the dual, as Old English git “you two,” as contrasted with ge “you” referring to three or more.

:10

:09

:08

:07

:06

:05

:04

:03

:02

:01

Dual is always a great word to know.

So is interrobang. Does it mean:

a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.

diamond

LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...

Origin:
1535–45; < Latin duālis containing two, relating to a pair, equivalent to du(o) two + -ālis -al¹

Related forms

du·al·ly, adverb

Can be confused: dual, duel.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source

Link To dual

Example Sentences

Dual agency, by which an agent represents both buyer and seller, is becoming more common.

Mary's is under special pressure to fulfill its dual mission.

Critics say that dual citizenship implies diminished loyalty to the motherland.

EXPAND

Dual agency, by which an agent represents both buyer and seller, is becoming more common.

Mary's is under special pressure to fulfill its dual mission.

Critics say that dual citizenship implies diminished loyalty to the motherland.

In a slow economy during a time when people are looking to save money, renewable energy can provide a dual solution.

Such dual behavior was then unknown to medical science.

We have many intersections with dual left-turn lanes.

GScreen has announced a ruggedized version of its dual screen notebook, seen above.

But he may be the first to show the duelling demi-urges behind his dual reality exchanging trade secrets over dessert.

Composting serves dual purposes for the green gardener.

The human history is rich on examples where the excessive stress on one side of any dual perspectives issues leads us to problems.

Henry attempts to come to terms with the confusion he feels over his dual racial heritage.

As laptops become more popular among users than desktops, the idea of having dual displays for mobile devices is catching on.

Canada is far from the only country to grapple with the complexities of dual citizenship.

He hopes to use these dual interests to double his impact on conservation efforts throughout the world.

If you don't have a dual flush toilet put a brick into the cistern to reduce capacity.

Then maybe if decided to, squeeze in a dual between the dinosaurs.

Yet in spite of such concerns, two well-known companies have recently plumped for dual leadership.

Dual side cargo pockets, and back flap pockets with hidden snap closures provide ample storage space for a days essentials.

Uzbekistan still operates a dual exchange-rate system, despite repeated promises to abolish it.

Dual carrying handles make it easy to pick up and throw in carry on.

One of the easiest ways corrupt officials have got at this money is by exploiting the dual exchange rate.

Apart from some subtle badges, the only clue to the car's dual life is the presence of two fuel caps.

The inequities of a dual labour market will become more glaring the higher unemployment rises.

The dual mandate is maintain price stability consistent with full employment.

Dual doors are an excellent touch for such a small shelter.

Dual heated pwr mirrors w/reverse tilt-down w/driver side auto-dimming.

The focus on student success was highlighted by dual reports to be released today by the federation.

Too much may stir bigotry and charges of dual loyalty, or even make some within the minority dangerously impatient for.

Dual distribution and pricing will have to be introduced.

Dual credit programs would seem to make more sense as a mechanism for earning college credit early.

Instead of being a huge metal beam that carries a gazillion volts with the dual purpose of.

Those bosses, with their dual role as party bigwigs and chief executives, are beholden to a higher authority than the stockmarket.

Shock-absorbing dual wheels offer streamlined, quiet, and comfortable maneuverability over carpets and cobblestones.

The obvious way to make the dual photo would be to print the same photo side-by-side.

Handles for the dual rear brakes are located on the handlebars.

None of the five candidates is custom-made for this dual role.

Haslingden's dual role will now facilitate that trend.

Convincingly enough, sketching a double-speed economy with dual forces at stakes seems more relevant.

After that there's the option to desalinate brackish water nearby and new technologies such as dual plumbing:.

With its dual wings and tail-mounted propeller, our remote.

The dual behavior of the yellow-bellied three-toed skink therefore offers scientists a rare opportunity.

I'll apply for dual citizenship and start working the open-mike nights at the dozens of comedy clubs.

COLLAPSE

Collins

World English Dictionary

dual (ˈdjuːəl)

—*adj*
1.	relating to or denoting two
2.	twofold; double
3.	(in the grammar of Old English, Ancient Greek, and certain other languages) denoting a form of a word indicating that exactly two referents are being referred to
4.	maths, logic (of structures or expressions) having the property that the interchange of certain pairs of terms, and usually the distribution of negation, yields equivalent structures or expressions

—n
5.	grammar
	a. the dual number
	b. a dual form of a word

—vb , duals, dualling, dualled
6.	(Brit) (tr) to make (a road) into a dual carriageway

[C17: from Latin duālis concerning two, from duo two]

'dually

—*adv*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

dual

c.1600, from L. dualis, from duo "two." Related: Dually.

FOLDOC

Computing Dictionary

dual definition

mathematics
Every field of mathematics has a different meaning of dual. Loosely, where there is some binary symmetry of a theory, the image of what you look at normally under this symmetry is referred to as the dual of your normal things.
In linear algebra for example, for any vector space V, over a field, F, the vector space of linear maps from V to F is known as the dual of V. It can be shown that if V is finite-dimensional, V and its dual are isomorphic (though no isomorphism between them is any more natural than any other).
There is a natural embedding of any vector space in the dual of its dual:
V -> V'': v -> (V': w -> wv : F)
(x' is normally written as x with a horizontal bar above it). I.e. v'' is the linear map, from V' to F, which maps any w to the scalar obtained by applying w to v. In short, this double-dual mapping simply exchanges the roles of function and argument.
It is conventional, when talking about vectors in V, to refer to the members of V' as covectors.
(1997-03-16)

Word Dynamo By Dictionary.com

Searching for dual?
How many words do you actually know?

FIND OUT

reflexive between divided highway double Dual Alliance dual carriageway

Matching Quote

"The love between man and woman is the greatest and most complete passion the world will ever see, because it is dual, because it is of two opposing kinds."

-D.H. Lawrence

Partners:Word Bloglines Citysearch The Daily Beast Ask Answers Ask Kids Life123 Sendori Thesaurus

About Privacy Policy Terms of Use API Careers Advertise with Us Contact Us Help