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

His first three teams in Los Angeles won championships behind the dynamic duo of Kobe Bryant and Shaquille O'Neal, and the Lakers added two more titles in 2009 and 2010 led by Bryant and Pau Gasol. — Arkansas Online, 9 Sep. 2026

As Wrexham’s two options to lead an attack that invariably features a lone forward playing in front of two No 10s, the duo played an important role last season in helping negotiate the considerable step-up to the Championship. — Richard Sutcliffe, New York Times, 9 Sep. 2026

See eight times the model mother-daughter duo wore coordinating looks, including one sweet throwback from 2010. — Ariel Wodarcyk, InStyle, 8 Sep. 2026

And the duo’s domestic bliss is interrupted by the arrival of a third party — their older sister Ruthie (Stephanie Hsu), an uptight lawyer whose midlife crisis brings her down to her brother and sister’s level. — Alison Herman, Variety, 8 Sep. 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