n. Any company of singers.n. An organized company of singers. Especially, such a company employed in church service.n. A choral society, especially one that performs sacred music. In eight-part music a chorus is divided into first and second choirs. In the Anglican Church, an official body consisting of the minor canons, the choral vicars, and the choristers connected with a cathedral, whose function is to perform the daily choral service. Such a choir is divided into two sections, called decani and cantoris, sitting on the right and left sides respectively; of these the decani side forms the leading or principal section. See cantoris, decani.n. That part of a church which is, or is considered as, appropriated for the use of the singers.n. A company; a band, originally of persons dancing to music: loosely applied to an assembly for any ceremonial purpose.n. Formerly and still occasionally quire.To sing in company.n. All that part of a cruciform church which is beyond, eastward of or farther from the main entrance than the transept; the eastern arm of the cross: so named because the choir proper (see def. 3) is usually in that part of the church and occupies nearly all of it.n. A group of instruments of the same class or of related organ-stops, as a trombone choir, a diapason choir, etc.