Entry 2 senses · 2 variants Webster, 1913 Completory · Com·ple·to·ry · IPA /kəmˈpliːtəɹi/ a. n. 01 a. Serving to fulfill. 1. Serving to fulfill. “Completory of ancient presignifications.” — Barrow. 02 n. Same as Compline. 1. Same as Compline.(Eccl.) See: Compline