Entry 1 sense Webster, 1913 Cantor /kăn'-tẽr/ · Can·tor · IPA /ˈkæntɔː(ɹ)/ 01 n. A singer; esp. the leader of a church choir; a precentor. 1. A singer; esp. the leader of a church choir; a precentor. “The cantor of the church intones the Te Deum.” — Milman.