octet

A composition for eight voices or eight instruments.

A group of eight singers or eight instrumentalists.

A group of eight.

A set of eight valence electrons in an atom or ion, forming a stable configuration.

In music, a composition for eight voices or instruments, or a company of eight singers or players. Sometimes, but not usually, equivalent to a double quartet. Also ottetto, octuor, octiphonium.

A composition for eight parts, usually for eight solo instruments or voices.

A group of eight singers or eight musicians.

A group or set of eight of something.