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
On the other hand, a safer, more defensive bet sees Eric Garcia, Marc Bernal or Marc Casado form a duo with the Dutchman. Tom Sanderson, Forbes.com, 23 Jan. 2026 The 2005 novel, co-written by Ernaux and photographer Marc Marie, chronicles the duo’s love story throughout the author’s breast cancer treatment. Rafa Sales Ross, Variety, 22 Jan. 2026 As CinemaCon was getting underway in the spring, Bloomberg ran an audacious piece that Warner Bros Discovery CEO David Zaslav was interviewing the duo’s replacements. Anthony D'alessandro, Deadline, 22 Jan. 2026 The junior duo of Izzy Sims and Kiley Husbands led San Clemente with 18 and 16 points, respectively. Dan Albano, Oc Register, 22 Jan. 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 27 Jan. 2026.

Kids Definition

duo

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

More from Merriam-Webster on duo

Last Updated: - Updated example sentences
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