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
Because the Knicks’ All-Star duo is rolling right into the playoff picture. Kristian Winfield, New York Daily News, 10 Apr. 2026 Along with being the leading scorer, Punch was one of the best defenders in the Big 12 and formed a dominant duo with Xavier Edmonds. Steven Johnson, Fort Worth Star-Telegram, 9 Apr. 2026 What’s surprising is the way that this particular duo turn a wonky art-world story into its own distinctly wonderful work of art. David Fear, Rolling Stone, 9 Apr. 2026 And as part of the deal, the duo will direct Sony’s Columbia Pictures adaptation of Metal Gear Solid, the pioneering video game created by Hideo Kojima. Borys Kit, HollywoodReporter, 9 Apr. 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

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Cite this Entry

“Duo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duo. Accessed 12 Apr. 2026.

Kids Definition

duo

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

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