Deanery n. : The office or the revenue of a dean. See the Note under Benefice, n., 3.

Deanery n. : The residence of a dean.

Deanery n. : The territorial jurisdiction of a dean.

Example:
define each of these church structures: archdiocese, Deanery, diocese, parish?

Taxonomy
deanery, dean, canon, norms, parish, free encyclopedia, the Catholic Church, the Church, federations, priests, rural deanery, deanery synod, duties, Church, rural dean, Church of England, Catholic, Anglican Churches.

Defination from the web:
deanery is headed by a vicar forane, also called a dean or archpriest, who is—according to the definition provided in canon 553—a priest ... promotion and coordination of the common pastoral activity within the deanery; ...