BAILIWICK
discipline, subject, subject area, subject field, field, field of study, study, bailiwick
(noun) a branch of knowledge; “in what discipline is his doctorate?”; “teachers should be well trained in their subject”; “anthropology is the study of human beings”
bailiwick
(noun) the area over which a bailiff has jurisdiction
Source: WordNet® 3.1
Etymology
Noun
bailiwick (plural bailiwicks)
The district within which a bailie or bailiff has jurisdiction.
A person's concern or sphere of operations, their area of skill or authority.
Synonyms
• (area or subject of authority or involvement): domain, department, jurisdiction, sphere, territory, turf, pale.
Source: Wiktionary
Bail"i*wick, n. Etym: [Bailie, bailiff + wick a village.] (Law)
Definition: The precincts within which a bailiff has jurisdiction; the
limits of a bailiff's authority.
Source: Webster’s Unabridged Dictionary 1913 Edition