Entry 2 senses Webster, 1913 Antiphon /ăn'-təf-änˌ/ · An·ti·phon · IPA /ˈæntɪfən/ 01 n. A musical response; alternate singing or chanting. See Antiphony, and Antiphone. 1. A musical response; alternate singing or chanting. See Antiphony, and Antiphone. See: Antiphony, Antiphone 2. A verse said before and after the psalms.