archdeaconry Syllabification: (arch·dea·con·ry)Pronunciation: /ˌärCHˈdēkənrē/Definition of archdeaconry noun (plural archdeaconries) the office of an archdeacon. the district for which an archdeacon is responsible. the residence of an archdeacon. archdeaconry in other Oxford dictionaries Definition of archdeaconry in the British & World English dictionary