[ˌɒrəˈtɔːrɪəʊ], (Noun)

Definitions:
- a large-scale, usually narrative musical work for orchestra and voices, typically on a sacred theme, performed without costume, scenery, or action. Well-known examples include Bach's Christmas Oratorio, Handel's Messiah, and Haydn's The Creation


Phrases:

Origin:
Italian, from ecclesiastical Latin oratorium ‘oratory’, from the musical services held in the church of the Oratory of St Philip Neri in Rome