Learn how to say Oratories correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word oratory:
noun (plural oratories)
1a small chapel, especially for private worship.
2 (Oratory) (in the Roman Catholic Church) a religious society of secular priests founded in Rome in 1564 to provide plain preaching and popular services and established in various countries.
noun & adjective
oratory1 (sense 2).
Middle English: from Anglo-Norman French oratorie, from ecclesiastical Latin oratorium, based on Latin orare ‘pray, speak’; sense 2 is from Congregation of the Fathers of the Oratory