Definition of 'dual'
adjective [ADJECTIVE noun]
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers
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dual
Word Frequency
dual in British English
adjective
1.
relating to or denoting two
3.
4. mathematics, 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
noun
5. grammar
a.
the dual number
b.
a dual form of a word
verbWord forms: duals, dualling or dualled
Collins English Dictionary. Copyright © HarperCollins Publishers
Derived forms
dually (ˈdually) adverb
Word origin
C17: from Latin duālis concerning two, from duo two
Word Frequency
dual in American English
adjective
1.
of two
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word Frequency
dual in American English
(ˈduːəl, ˈdjuː-)
adjective
1.
of, pertaining to, or noting two
2.
composed or consisting of two people, items, parts, etc., together; twofold; double
dual ownership
dual controls on a plane
noun Grammar
5.
the dual number
6.
a form in the dual, as Old English git “you two,” as contrasted with ge “you” referring to three or more
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019
by Penguin Random House LLC and HarperCollins Publishers Ltd
Derived forms
dually adverb
Word origin
[1535–45; ‹ L duālis containing two, relating to a pair, equiv. to du(o) two + -ālis -al1]Examples of 'dual' in a sentence
dual
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dual
British English: dual
ADJECTIVE /ˈdjuːəl/
Dual means having two parts, functions, or aspects.
...his dual role as head of the party and head of state.
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Definition of dual from the Collins English Dictionary
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