Θεία Λειτουργία: [divine] service, mass, according to Stavropoulos. Here however the sense is broader. While the mass is the service par excellence, the music of all church services is of a piece. Stavropoulos does not give liturgy as an equivalent, although there are 690 citations for this word in the Bank of English, so, although somewhat technical, it is not uncommon. The collocation divine liturgy in the Bank of English appears almost exclusively in announcements of Orthodox church services (10.30 am: divine liturgy), rather than in long running texts, The form liturgical occurs 509 times, 16 in the collocation liturgical music.