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English definition of “department”

department

noun [C]  /dɪˈpɑrt·mənt/ (abbreviation dept.) us  
any of the divisions or parts of esp. a school, business, or government: Chavez is the head of the geography department. The shoe department is on the fifth floor. She lives in Washington and works for the Department of Defense. fig.infml I thought buying the tickets was your department (= area of responsibility).
departmental
adjective [not gradable]  /dɪˌpɑrtˈmen·təl, ˌdi-/ us  
a departmental meeting
(Definition of department from the Cambridge Academic Content Dictionary © Cambridge University Press)
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