Simple Definition of duo
: two people who perform together, are usually seen together, or are associated with each other
: a piece of music that is performed by two musicians
Examples of duo
The comedy duo will perform tonight.
The author-illustrator duo will be signing their books tomorrow.
He and his partner make quite a duo.
Origin of duo
Italian, from Latin, two — more at two
First Known Use: 1590
Definition of duo-
: two <duologue>
Origin of duo-
Seen and Heard
What made you want to look up duo? Please tell us where you read or heard it (including the quote, if possible).