Septet (noun)

1. A group of seven musicians.
2. A musical composition for seven instruments or voices.
3. A group of seven people working together or in a group.

Origin:

The word is derived from the latin word "septem" which means seven.

Examples:

1. The jazz septet performed several pieces by Duke Ellington.
2. The septet was made up of two saxophones, trumpet, piano, bass, drums and guitar.
3. The septet in this study includes researchers from three different institutions.
4. The septet was a popular ensemble during the 19th century.
5. The septet's performance was very popular and they received a standing ovation.