I. ˈkwī(-ə)r noun
Etymology: Middle English quer, from Anglo-French queor, from Medieval Latin chorus, from Latin, chorus — more at chorus
Date: 14th century
1. : an organized company of singers (as in a church service)
2. : a group of instruments of the same class
a brass choir
3. : an organized group of persons or things
4. : a division of angels
5. : the part of a church occupied by the singers or by the clergy ; also : the part of a church where the services are performed
6. : a group organized for ensemble speaking
II. intransitive verb
Date: 1596
: to sing or sound in chorus or concert