duo

1 of 2

noun

ˈdü-(ˌ)ō 

also ˈdyü-

plural duos

1

: duet

2

: pair sense 2

duo-

2 of 2

combining form

: two

duologue

Synonyms of duo

Noun

• pair
• couple

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

Noun

The year was 2016, and the now-lead vocalist María Zardoya was performing at The Kibitz Room, a low-key cocktail lounge attached to the iconic Canter's Deli, while drummer/producer Josh Conway filled in as sound engineer for her set, the duo said in a 2017 interview with Remezcla. —Pamela Avila, USA Today, 30 Jan. 2026

The Horned Frogs’ big man duo was able to match Houston’s physicality, but the lack of production from TCU’s guards was ultimately the difference. —Steven Johnson, Fort Worth Star-Telegram, 29 Jan. 2026

The duo bought the 1870s ranch (2969 County Road 422, Talpa) in 1998 and opened its small dining room in 2003. —Nick Wooten, Dallas Morning News, 29 Jan. 2026

My Ghost Go Ghost peaks with its final act, when the duo frames its experience as something to appreciate, not only lament. —Benny Sun, Pitchfork, 29 Jan. 2026

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

Kids Definition

duo

noun

ˈd(y)ü-ō 

plural duos

1

: duet

2

: a group of two : pair entry 1