1. A devotional composition sung responsively as part of a liturgy.
a. A short liturgical text chanted or sung responsively preceding or following a psalm, psalm verse, or canticle.
b. Such a text formerly used as a response but now rendered independently.
3. A response; a reply: "It would be truer ... to see [conservation] as an antiphon to the modernization of the 1950s and 1960s" (Raphael Samuel).
[Late Latin antiphōna, sung responses; see ANTHEM.]
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