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

More than 50 of the players competing in this summer’s World Cup have featured on its platform, including France and PSG duo Bradley Barcola and Warren Zaire-Emery. — Jordan Campbell, New York Times, 22 July 2026

The team also have a duo of undrafted rookies in DeVonta Smith and Cam Miller to evaluate. — Mike Kaye, Charlotte Observer, 21 July 2026

The duo opted for pieces from Sabyasachi, including striking pearl and diamond creations, alongside Garatti Milano and Sauer high jewelry pieces helped elevate the final looks. — Alex Badia, Footwear News, 21 July 2026

As soon as the duo walked out the door, all script pages that featured the Kardashian scene were ripped away and thrown in a trash can. — Lexy Perez, HollywoodReporter, 21 July 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