duo

1 of 2

noun

ˈdü-(ˌ)ō How to pronounce duo (audio)
also ˈdyü-
plural duos
Synonyms of duonext
1
: duet
2

duo-

2 of 2

combining form

: two
duologue

Examples of duo in a Sentence

Noun The comedy duo will perform tonight. The author-illustrator duo will be signing their books tomorrow. He and his partner make quite a duo.
Recent Examples on the Web
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Noun
The duo had previously worked together on The Ben Stiller Show. Raven Brunner, PEOPLE, 7 June 2026 Over the coming year, Mixon will identify the insects found in their samples and the duo will eventually author a report for the National Park Service, which manages Glen Canyon National Recreation Area. Elise Schmelzer, Denver Post, 7 June 2026 The coaching duo of Mowry and Rico are The Times’ coaches of the year. Eric Sondheimer, Los Angeles Times, 7 June 2026 The production featured music by Tony Award-winning songwriting duo Benj Pasek and Justin Paul in collaboration with Oscar-winning songwriter Mark Sonnenblick, with choreography by Sarah O'Gleby. ABC News, 7 June 2026 See All Example Sentences for duo

Word History

Etymology

Noun

Italian, from Latin, two — more at two

Combining form

Latin duo

First Known Use

Noun

1590, in the meaning defined at sense 1

Time Traveler
The first known use of duo was in 1590

Browse Nearby Words

Cite this Entry

“Duo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duo. Accessed 9 Jun. 2026.

Kids Definition

duo

noun
plural duos
1
: duet
2
: a group of two : pair entry 1

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