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
Seth Rogen and James Franco were once an inseparable comedic duo. Cerys Davies, Los Angeles Times, 15 June 2026 Hugh Jackman and Kate Hudson star in this movie about a Neil Diamond cover duo. Erik Kain, Forbes.com, 14 June 2026 And the duo capitalized on the early advantage. Ava Dicecca, Sun Sentinel, 14 June 2026 The plush padding inside keeps your feet secure and snug no matter where the day takes you, while the suede-leather duo offers a striking look while running daily errands. Paris Wilson, Travel + Leisure, 14 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 17 Jun. 2026.

Kids Definition

duo

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

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