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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Feed the bigs One thing the Horned Frogs have figured it out is how dynamic their frontcourt duo of junior Xavier Edmonds and sophomore David Punch has become. Steven Johnson, Fort Worth Star-Telegram, 5 Feb. 2026 The sibling duo won the Grammy for song of the year Sunday, becoming the first ever three-time winners of the category. Tracy Brown, Los Angeles Times, 5 Feb. 2026 The duo, young for their career trajectories, first met at the 2016 Democratic National Convention in Philadelphia. Jay Stahl, USA Today, 5 Feb. 2026 The duo presents nightmare matchups for opponents. Nathan Canilao, Mercury News, 5 Feb. 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 10 Feb. 2026.

Kids Definition

duo

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

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