Dictionary.net

(Anglican Church) a daily evening service with prayers prescribed in the Book of Common Prayer

the sixth of the seven canonical hours of the divine office; early evening; now often made a public service on Sundays

(Anglican Church) a daily evening service with prayers prescribed in the Book of Common Prayer

the sixth of the seven canonical hours of the divine office; early evening; now often made a public service on Sundays

The evening service in church, so called because formerly chanted or sung.