| Sanctus 1. (n.) A part of the Mass, or, in Protestant churches, a part of the communion service, of which the first words in Latin are Sanctus, sanctus, sanctus [Holy, holy, holy]; -- called also Tersanctus. 2. (n.) An anthem composed for these words. Thesaurus Entries Agnus Dei, Alleluia, Anamnesis, Blessing, Canon, Collect, Communion, Consecration, Credo, Dismissal, Epistle, Fraction, Gloria, Gospel, Gradual, Introit, Kyrie, Kyrie Eleison, Last Gospel, Lavabo, Offertory, Paternoster, Pax, Post-Communion, Preface, Secreta, Tersanctus, Tract | ![]() |