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 mother-daughter duo was captured sharing a giggly moment during the men’s finals. — Meg Walters, InStyle, 14 July 2026

To escape this new reality, the duo must confront the weight of their lineage and decide whether their love can break the cycle or if they’re doomed to remain trapped forever. — Rafa Sales Ross, Variety, 14 July 2026

In addition to the questionable trade of 2024 fourth overall pick Rickea Jackson to Chicago for veteran Atkins this offseason, Pebley traded the picks that would become Storm post duo Awa Fam and Dominique Malonga for Plum and Kia Nurse. — Marisa Ingemi, Los Angeles Times, 14 July 2026

The duo combined for 70 points, including 18 of the team’s final 20, in Monday night’s 104-100 nailbiter win over Phoenix at Target Center. — Mike Cook, Twin Cities, 14 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