Duo (noun)

1. A pair of people or things, especially a musical or artistic partnership.
2. A performance by two people or a group of two people.

Origin:

From latin duo "two".

Examples:

1. The musical duo played a concert at the park.
2. The comedy duo had the audience in stitches.
3. The detective duo solved the case.
4. The dancing duo wowed the crowd with their routine.
5. The fashion duo created a new collection together.