dual

[doo-uhl, dyoo-]

adjective

1. of, relating to, or noting two.

2. composed or consisting of two people, items, parts, etc., together; twofold; double.

   dual ownership;

   dual controls on a plane.

3. having a twofold, or double, character or nature.

4. 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.

1. the dual number.

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

dual

/ ˈdjuːəl /

adjective

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

noun

1. grammar

   1. the dual number

   2. a dual form of a word

verb

1. (tr) to make (a road) into a dual carriageway

Other Word Forms

• dually adverb

Word History and Origins

Origin of dual¹

First recorded in 1535–45; from Latin duālis “containing two, relating to a pair,” equivalent to du(o) two + -ālis -al ¹

Word History and Origins

Origin of dual¹

C17: from Latin duālis concerning two, from duo two

Example Sentences

The sign serves as a playful nod to the space’s dual function, reminding visitors that they are not just in a kitchen but also a video rental library.

From Los Angeles Times

Brady faces a number of NFL-imposed restrictions on what he’s allowed to do as a broadcaster given his dual status as a team minority owner.

From Los Angeles Times

He also works as a booth analyst for NFL games broadcast on Fox, and the NFL has placed certain restrictions on him to prevent any conflicts of interest concerning his dual roles.

From Los Angeles Times

The Dodgers need to take the step with something they’ve only dabbled in: “dual starters.”

From Los Angeles Times

“I was enticed by the dual perspectives and delving more into that reality because that is how we operate,” Wright says.

From Los Angeles Times