Cantor/ˈkæntɔːr/ Definition 1 of 2Pro Tip 1/3Church Role Cantor often refers to the lead singer responsible for hymns and psalms in Christian churches. The cantor started the service with a powerful hymn. Pro Tip 2/3Musical Expert Cantors are typically well-trained in music and may conduct the choir. The cantor instructed the choir on their harmonies. Pro Tip 3/3Liturgical Presence The presence of a cantor often indicates a formal or traditional church service. They enjoyed the solemnity the cantor brought to the ceremony.