"bailiwicks" in the noun sense
1. bailiwick
the area over which a bailiff has jurisdiction
2. discipline, subject, subject area, subject field, field, field of study, study, bailiwick
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"
Source: WordNet® (An amazing lexical database of English)
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