duo

1 of 2

noun

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

duo-

2 of 2

combining form

: two
duologue

Synonyms of duo

Relevance

Noun

See All Synonyms & Antonyms in Thesaurus

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
The Turkish studio, founded by seafaring duo Bilge Zaptçıoğlu Atal and Barbaros Atal in 2014, has unveiled a new superyacht concept centered around a striking 12-foot-tall atrium designed to improve the guest experience. — Rachel Cormack, Robb Report, 1 Sep. 2026 The announcement was only two months before Gunn and Safran’s DC takeover was officially confirmed, and the duo did not have plans to bring Cavill’s Superman back. — Zack Sharf, Variety, 1 Sep. 2026 In the sweet snaps, the mother-son duo could be seen spending time together on the beach, posing after a tennis lesson and hanging out on vacation. — Georgia Slater, PEOPLE, 1 Sep. 2026 The duo's move paved the way for an immediate vote on a bill to protect lobstermen from new federal whale-protection regulations. — Zachary Schermele, USA Today, 1 Sep. 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

duny
duo
duo-
See all Nearby Words

Cite this Entry

“Duo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duo. Accessed 4 Sep. 2026.

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Kids Definition

duo

noun
ˈd(y)ü-ō How to pronounce duo (audio)
plural duos
1
: duet
2
: a group of two : pair entry 1

More from Merriam-Webster on duo

Britannica.com: Encyclopedia article about duo

Last Updated: - Updated example sentences
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