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HOW TO PRONOUNCE

dual

/ˈdul/

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American Pronunciation Guide · 1:03
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What does dual mean?

adjective

  1. Characterized by having two (usually equivalent) components.
  2. Pertaining to two, pertaining to a pair of.
  3. Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes.
More meanings (9)

adjective

  1. Exhibiting duality.
  2. Being the space of all linear functionals of (some other space).
  3. Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms.

noun

  1. Of an item that is one of a pair, the other item in the pair.
  2. Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
  3. The dual number.
  4. 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.
  5. A head-to-head match or meet between two teams, such as two high schools or colleges.

verb

  1. To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway.

Definitions regrouped for readability · CC BY-SA 4.0

IPA pronunciation

/ˈdul/

Wiktionary contributors · CC BY-SA 4.0

Other dictionary pronunciations

/ˈd(j)u.əl/
Wiktionary contributors · CC BY-SA 4.0

Pronunciation varies by speaker and region. About these dictionary pronunciations.

In the pages of books

See this word in context.

It is a striking example of dual crime, four instances of which are given towards the end of this book.
H. B. (Henry Brodribb) IrvingA Book of Remarkable CriminalsProject Gutenberg ebook #446
Everywhere, throughout the early historic nations, were worshipped symbols of the attributes or functions of the dual or triune God.
Eliza Burt GambleThe God-Idea of the Ancients; Or, Sex in ReligionProject Gutenberg ebook #639
More book examples (3)
At a very early period she had apprehended instinctively the dual life—that outward existence which conforms, the inward life which questions.
Kate ChopinThe Awakening, and Selected Short StoriesProject Gutenberg ebook #160
Having evolved the dual forces of its divine nature, the Ego sees that it is good and rests from its labor.
Thomas H. Burgoyne; Belle M. WagnerThe Light of Egypt; Or, The Science of the Soul and the Stars — Volume 2Project Gutenberg ebook #1650
They have traveled East from Ohio in their touring car for the dual purpose of seeing the country and picking up a daughter.
Jean WebsterDear EnemyProject Gutenberg ebook #238