or·a·to·ry /ˈɔrəˌtori, ˈɑr, ˌtɔr-/
Or·a·to·ry n.; pl. Oratories A place of orisons, or prayer; especially, a chapel or small room set apart for private devotions.
An oratory [temple] . . . in worship of Dian. --Chaucer.
Do not omit thy prayers for want of a good oratory, or place to pray in. --Jer. Taylor.
Fathers of the Oratory R. C. Ch., a society of priests founded by St. Philip Neri, living in community, and not bound by a special vow. The members are called also oratorians.
Or·a·to·ry, n. The art of an orator; the art of public speaking in an eloquent or effective manner; the exercise of rhetorical skill in oral discourse; eloquence. “The oratory of Greece and Rome.”
When a world of men
Could not prevail with all their oratory. --Shak.
n : addressing an audience formally (usually a long and
rhetorical address and often pompous); "he loved the
sound of his own oratory"