Choirs

noun

1. Singing group; group of people who sing together; company of people who are trained to sing together.

   "The church choir practices Thursday nights."

2. The part of a church where the choir assembles for song.
3. (Christian angelology) One of the nine ranks or orders of angels.

   "Seraphim, Cherubim, and Thrones are three of the choirs of angels."

4. Set of strings (one per note) for a harpsichord.