Pronunciation: (kwīur), [key]
1. a company of singers, esp. an organized group employed in church service.
2. any group of musicians or musical instruments; a musical company, or band, or a division of one: string choir.
a. the part of a church occupied by the singers of the choir.
b. the part of a cruciform church east of the crossing.
4. (in medieval angelology) one of the orders of angels.
professed to recite or chant the divine office: a choir monk.
to sing or sound in chorus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.